641026680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:394

約数の個数: 256

約数和(自身を含む): 2300313600

約数和(自身を除く): 1659286920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 103, 105, 120, 124, 140, 155, 168, 186, 206, 210, 217, 239, 248, 280, 309, 310, 372, 412, 420, 434, 465, 478, 515, 618, 620, 651, 717, 721, 744, 824, 840, 868, 930, 956, 1030, 1085, 1195, 1236, 1240, 1302, 1434, 1442, 1545, 1673, 1736, 1860, 1912, 2060, 2163, 2170, 2390, 2472, 2604, 2868, 2884, 3090, 3193, 3255, 3346, 3585, 3605, 3720, 4120, 4326, 4340, 4780, 5019, 5208, 5736, 5768, 6180, 6386, 6510, 6692, 7170, 7210, 7409, 8365, 8652, 8680, 9560, 9579, 10038, 10815, 12360, 12772, 13020, 13384, 14340, 14420, 14818, 15965, 16730, 17304, 19158, 20076, 21630, 22227, 22351, 24617, 25095, 25544, 26040, 28680, 28840, 29636, 31930, 33460, 37045, 38316, 40152, 43260, 44454, 44702, 47895, 49234, 50190, 51863, 59272, 63860, 66920, 67053, 73851, 74090, 76632, 86520, 88908, 89404, 95790, 98468, 100380, 103726, 111135, 111755, 123085, 127720, 134106, 147702, 148180, 155589, 172319, 177816, 178808, 191580, 196936, 200760, 207452, 222270, 223510, 246170, 259315, 268212, 295404, 296360, 311178, 335265, 344638, 369255, 383160, 414904, 444540, 447020, 492340, 516957, 518630, 536424, 590808, 622356, 670530, 689276, 738510, 763127, 777945, 861595, 889080, 894040, 984680, 1033914, 1037260, 1244712, 1341060, 1378552, 1477020, 1526254, 1555890, 1723190, 2067828, 2074520, 2289381, 2584785, 2682120, 2954040, 3052508, 3111780, 3446380, 3815635, 4135656, 4578762, 5169570, 5341889, 6105016, 6223560, 6892760, 7631270, 9157524, 10339140, 10683778, 11446905, 15262540, 16025667, 18315048, 20678280, 21367556, 22893810, 26709445, 30525080, 32051334, 42735112, 45787620, 53418890, 64102668, 80128335, 91575240, 106837780, 128205336, 160256670, 213675560, 320513340, 641026680]

約数ペア:

[(1, 641026680), (2, 320513340), (3, 213675560), (4, 160256670), (5, 128205336), (6, 106837780), (7, 91575240), (8, 80128335), (10, 64102668), (12, 53418890), (14, 45787620), (15, 42735112), (20, 32051334), (21, 30525080), (24, 26709445), (28, 22893810), (30, 21367556), (31, 20678280), (35, 18315048), (40, 16025667), (42, 15262540), (56, 11446905), (60, 10683778), (62, 10339140), (70, 9157524), (84, 7631270), (93, 6892760), (103, 6223560), (105, 6105016), (120, 5341889), (124, 5169570), (140, 4578762), (155, 4135656), (168, 3815635), (186, 3446380), (206, 3111780), (210, 3052508), (217, 2954040), (239, 2682120), (248, 2584785), (280, 2289381), (309, 2074520), (310, 2067828), (372, 1723190), (412, 1555890), (420, 1526254), (434, 1477020), (465, 1378552), (478, 1341060), (515, 1244712), (618, 1037260), (620, 1033914), (651, 984680), (717, 894040), (721, 889080), (744, 861595), (824, 777945), (840, 763127), (868, 738510), (930, 689276), (956, 670530), (1030, 622356), (1085, 590808), (1195, 536424), (1236, 518630), (1240, 516957), (1302, 492340), (1434, 447020), (1442, 444540), (1545, 414904), (1673, 383160), (1736, 369255), (1860, 344638), (1912, 335265), (2060, 311178), (2163, 296360), (2170, 295404), (2390, 268212), (2472, 259315), (2604, 246170), (2868, 223510), (2884, 222270), (3090, 207452), (3193, 200760), (3255, 196936), (3346, 191580), (3585, 178808), (3605, 177816), (3720, 172319), (4120, 155589), (4326, 148180), (4340, 147702), (4780, 134106), (5019, 127720), (5208, 123085), (5736, 111755), (5768, 111135), (6180, 103726), (6386, 100380), (6510, 98468), (6692, 95790), (7170, 89404), (7210, 88908), (7409, 86520), (8365, 76632), (8652, 74090), (8680, 73851), (9560, 67053), (9579, 66920), (10038, 63860), (10815, 59272), (12360, 51863), (12772, 50190), (13020, 49234), (13384, 47895), (14340, 44702), (14420, 44454), (14818, 43260), (15965, 40152), (16730, 38316), (17304, 37045), (19158, 33460), (20076, 31930), (21630, 29636), (22227, 28840), (22351, 28680), (24617, 26040), (25095, 25544)]