645491840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{967}}^1$

素因数の和:1142

約数の個数: 128

約数和(自身を含む): 1777248000

約数和(自身を除く): 1131756160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 149, 160, 224, 280, 298, 320, 448, 560, 596, 640, 745, 896, 967, 1043, 1120, 1192, 1490, 1934, 2086, 2240, 2384, 2980, 3868, 4172, 4480, 4768, 4835, 5215, 5960, 6769, 7736, 8344, 9536, 9670, 10430, 11920, 13538, 15472, 16688, 19072, 19340, 20860, 23840, 27076, 30944, 33376, 33845, 38680, 41720, 47680, 54152, 61888, 66752, 67690, 77360, 83440, 95360, 108304, 123776, 133504, 135380, 144083, 154720, 166880, 216608, 270760, 288166, 309440, 333760, 433216, 541520, 576332, 618880, 667520, 720415, 866432, 1008581, 1083040, 1152664, 1440830, 2017162, 2166080, 2305328, 2881660, 4034324, 4332160, 4610656, 5042905, 5763320, 8068648, 9221312, 10085810, 11526640, 16137296, 18442624, 20171620, 23053280, 32274592, 40343240, 46106560, 64549184, 80686480, 92213120, 129098368, 161372960, 322745920, 645491840]

約数ペア:

[(1, 645491840), (2, 322745920), (4, 161372960), (5, 129098368), (7, 92213120), (8, 80686480), (10, 64549184), (14, 46106560), (16, 40343240), (20, 32274592), (28, 23053280), (32, 20171620), (35, 18442624), (40, 16137296), (56, 11526640), (64, 10085810), (70, 9221312), (80, 8068648), (112, 5763320), (128, 5042905), (140, 4610656), (149, 4332160), (160, 4034324), (224, 2881660), (280, 2305328), (298, 2166080), (320, 2017162), (448, 1440830), (560, 1152664), (596, 1083040), (640, 1008581), (745, 866432), (896, 720415), (967, 667520), (1043, 618880), (1120, 576332), (1192, 541520), (1490, 433216), (1934, 333760), (2086, 309440), (2240, 288166), (2384, 270760), (2980, 216608), (3868, 166880), (4172, 154720), (4480, 144083), (4768, 135380), (4835, 133504), (5215, 123776), (5960, 108304), (6769, 95360), (7736, 83440), (8344, 77360), (9536, 67690), (9670, 66752), (10430, 61888), (11920, 54152), (13538, 47680), (15472, 41720), (16688, 38680), (19072, 33845), (19340, 33376), (20860, 30944), (23840, 27076)]