646521120

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2069}}^1$

素因数の和:2128

約数の個数: 288

約数和(自身を含む): 2604026880

約数和(自身を除く): 1957505760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 32, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 96, 105, 112, 120, 124, 126, 140, 144, 155, 160, 168, 180, 186, 210, 217, 224, 240, 248, 252, 279, 280, 288, 310, 315, 336, 360, 372, 420, 434, 465, 480, 496, 504, 558, 560, 620, 630, 651, 672, 720, 744, 840, 868, 930, 992, 1008, 1085, 1116, 1120, 1240, 1260, 1302, 1395, 1440, 1488, 1680, 1736, 1860, 1953, 2016, 2069, 2170, 2232, 2480, 2520, 2604, 2790, 2976, 3255, 3360, 3472, 3720, 3906, 4138, 4340, 4464, 4960, 5040, 5208, 5580, 6207, 6510, 6944, 7440, 7812, 8276, 8680, 8928, 9765, 10080, 10345, 10416, 11160, 12414, 13020, 14483, 14880, 15624, 16552, 17360, 18621, 19530, 20690, 20832, 22320, 24828, 26040, 28966, 31035, 31248, 33104, 34720, 37242, 39060, 41380, 43449, 44640, 49656, 52080, 57932, 62070, 62496, 64139, 66208, 72415, 74484, 78120, 82760, 86898, 93105, 99312, 104160, 115864, 124140, 128278, 130347, 144830, 148968, 156240, 165520, 173796, 186210, 192417, 198624, 217245, 231728, 248280, 256556, 260694, 289660, 297936, 312480, 320695, 331040, 347592, 372420, 384834, 434490, 448973, 463456, 496560, 513112, 521388, 577251, 579320, 595872, 641390, 651735, 695184, 744840, 769668, 868980, 897946, 962085, 993120, 1026224, 1042776, 1154502, 1158640, 1282780, 1303470, 1346919, 1390368, 1489680, 1539336, 1737960, 1795892, 1924170, 2052448, 2085552, 2244865, 2309004, 2317280, 2565560, 2606940, 2693838, 2886255, 2979360, 3078672, 3475920, 3591784, 3848340, 4040757, 4171104, 4489730, 4618008, 5131120, 5213880, 5387676, 5772510, 6157344, 6734595, 6951840, 7183568, 7696680, 8081514, 8979460, 9236016, 10262240, 10427760, 10775352, 11545020, 13469190, 14367136, 15393360, 16163028, 17958920, 18472032, 20203785, 20855520, 21550704, 23090040, 26938380, 30786720, 32326056, 35917840, 40407570, 43101408, 46180080, 53876760, 64652112, 71835680, 80815140, 92360160, 107753520, 129304224, 161630280, 215507040, 323260560, 646521120]

約数ペア:

[(1, 646521120), (2, 323260560), (3, 215507040), (4, 161630280), (5, 129304224), (6, 107753520), (7, 92360160), (8, 80815140), (9, 71835680), (10, 64652112), (12, 53876760), (14, 46180080), (15, 43101408), (16, 40407570), (18, 35917840), (20, 32326056), (21, 30786720), (24, 26938380), (28, 23090040), (30, 21550704), (31, 20855520), (32, 20203785), (35, 18472032), (36, 17958920), (40, 16163028), (42, 15393360), (45, 14367136), (48, 13469190), (56, 11545020), (60, 10775352), (62, 10427760), (63, 10262240), (70, 9236016), (72, 8979460), (80, 8081514), (84, 7696680), (90, 7183568), (93, 6951840), (96, 6734595), (105, 6157344), (112, 5772510), (120, 5387676), (124, 5213880), (126, 5131120), (140, 4618008), (144, 4489730), (155, 4171104), (160, 4040757), (168, 3848340), (180, 3591784), (186, 3475920), (210, 3078672), (217, 2979360), (224, 2886255), (240, 2693838), (248, 2606940), (252, 2565560), (279, 2317280), (280, 2309004), (288, 2244865), (310, 2085552), (315, 2052448), (336, 1924170), (360, 1795892), (372, 1737960), (420, 1539336), (434, 1489680), (465, 1390368), (480, 1346919), (496, 1303470), (504, 1282780), (558, 1158640), (560, 1154502), (620, 1042776), (630, 1026224), (651, 993120), (672, 962085), (720, 897946), (744, 868980), (840, 769668), (868, 744840), (930, 695184), (992, 651735), (1008, 641390), (1085, 595872), (1116, 579320), (1120, 577251), (1240, 521388), (1260, 513112), (1302, 496560), (1395, 463456), (1440, 448973), (1488, 434490), (1680, 384834), (1736, 372420), (1860, 347592), (1953, 331040), (2016, 320695), (2069, 312480), (2170, 297936), (2232, 289660), (2480, 260694), (2520, 256556), (2604, 248280), (2790, 231728), (2976, 217245), (3255, 198624), (3360, 192417), (3472, 186210), (3720, 173796), (3906, 165520), (4138, 156240), (4340, 148968), (4464, 144830), (4960, 130347), (5040, 128278), (5208, 124140), (5580, 115864), (6207, 104160), (6510, 99312), (6944, 93105), (7440, 86898), (7812, 82760), (8276, 78120), (8680, 74484), (8928, 72415), (9765, 66208), (10080, 64139), (10345, 62496), (10416, 62070), (11160, 57932), (12414, 52080), (13020, 49656), (14483, 44640), (14880, 43449), (15624, 41380), (16552, 39060), (17360, 37242), (18621, 34720), (19530, 33104), (20690, 31248), (20832, 31035), (22320, 28966), (24828, 26040)]