321281520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 240

約数和(自身を含む): 1182067200

約数和(自身を除く): 860785680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 199, 210, 217, 240, 248, 280, 310, 336, 372, 398, 420, 434, 465, 496, 560, 597, 620, 651, 744, 796, 840, 868, 930, 961, 995, 1085, 1194, 1240, 1302, 1393, 1488, 1592, 1680, 1736, 1860, 1922, 1990, 2170, 2388, 2480, 2604, 2786, 2883, 2985, 3184, 3255, 3472, 3720, 3844, 3980, 4179, 4340, 4776, 4805, 5208, 5572, 5766, 5970, 6169, 6510, 6727, 6965, 7440, 7688, 7960, 8358, 8680, 9552, 9610, 10416, 11144, 11532, 11940, 12338, 13020, 13454, 13930, 14415, 15376, 15920, 16716, 17360, 18507, 19220, 20181, 20895, 22288, 23064, 23880, 24676, 26040, 26908, 27860, 28830, 30845, 33432, 33635, 37014, 38440, 40362, 41790, 43183, 46128, 47760, 49352, 52080, 53816, 55720, 57660, 61690, 66864, 67270, 74028, 76880, 80724, 83580, 86366, 92535, 98704, 100905, 107632, 111440, 115320, 123380, 129549, 134540, 148056, 161448, 167160, 172732, 185070, 191239, 201810, 215915, 230640, 246760, 259098, 269080, 296112, 322896, 334320, 345464, 370140, 382478, 403620, 431830, 493520, 518196, 538160, 573717, 647745, 690928, 740280, 764956, 807240, 863660, 956195, 1036392, 1147434, 1295490, 1338673, 1480560, 1529912, 1614480, 1727320, 1912390, 2072784, 2294868, 2590980, 2677346, 2868585, 3059824, 3454640, 3824780, 4016019, 4589736, 5181960, 5354692, 5737170, 6693365, 7649560, 8032038, 9179472, 10363920, 10709384, 11474340, 13386730, 15299120, 16064076, 20080095, 21418768, 22948680, 26773460, 32128152, 40160190, 45897360, 53546920, 64256304, 80320380, 107093840, 160640760, 321281520]

約数ペア:

[(1, 321281520), (2, 160640760), (3, 107093840), (4, 80320380), (5, 64256304), (6, 53546920), (7, 45897360), (8, 40160190), (10, 32128152), (12, 26773460), (14, 22948680), (15, 21418768), (16, 20080095), (20, 16064076), (21, 15299120), (24, 13386730), (28, 11474340), (30, 10709384), (31, 10363920), (35, 9179472), (40, 8032038), (42, 7649560), (48, 6693365), (56, 5737170), (60, 5354692), (62, 5181960), (70, 4589736), (80, 4016019), (84, 3824780), (93, 3454640), (105, 3059824), (112, 2868585), (120, 2677346), (124, 2590980), (140, 2294868), (155, 2072784), (168, 1912390), (186, 1727320), (199, 1614480), (210, 1529912), (217, 1480560), (240, 1338673), (248, 1295490), (280, 1147434), (310, 1036392), (336, 956195), (372, 863660), (398, 807240), (420, 764956), (434, 740280), (465, 690928), (496, 647745), (560, 573717), (597, 538160), (620, 518196), (651, 493520), (744, 431830), (796, 403620), (840, 382478), (868, 370140), (930, 345464), (961, 334320), (995, 322896), (1085, 296112), (1194, 269080), (1240, 259098), (1302, 246760), (1393, 230640), (1488, 215915), (1592, 201810), (1680, 191239), (1736, 185070), (1860, 172732), (1922, 167160), (1990, 161448), (2170, 148056), (2388, 134540), (2480, 129549), (2604, 123380), (2786, 115320), (2883, 111440), (2985, 107632), (3184, 100905), (3255, 98704), (3472, 92535), (3720, 86366), (3844, 83580), (3980, 80724), (4179, 76880), (4340, 74028), (4776, 67270), (4805, 66864), (5208, 61690), (5572, 57660), (5766, 55720), (5970, 53816), (6169, 52080), (6510, 49352), (6727, 47760), (6965, 46128), (7440, 43183), (7688, 41790), (7960, 40362), (8358, 38440), (8680, 37014), (9552, 33635), (9610, 33432), (10416, 30845), (11144, 28830), (11532, 27860), (11940, 26908), (12338, 26040), (13020, 24676), (13454, 23880), (13930, 23064), (14415, 22288), (15376, 20895), (15920, 20181), (16716, 19220), (17360, 18507)]