40635280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{487}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 108921600

約数和(自身を除く): 68286320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 487, 560, 596, 745, 974, 1043, 1192, 1490, 1948, 2086, 2384, 2435, 2980, 3409, 3896, 4172, 4870, 5215, 5960, 6818, 7792, 8344, 9740, 10430, 11920, 13636, 16688, 17045, 19480, 20860, 27272, 34090, 38960, 41720, 54544, 68180, 72563, 83440, 136360, 145126, 272720, 290252, 362815, 507941, 580504, 725630, 1015882, 1161008, 1451260, 2031764, 2539705, 2902520, 4063528, 5079410, 5805040, 8127056, 10158820, 20317640, 40635280]

約数ペア:

[(1, 40635280), (2, 20317640), (4, 10158820), (5, 8127056), (7, 5805040), (8, 5079410), (10, 4063528), (14, 2902520), (16, 2539705), (20, 2031764), (28, 1451260), (35, 1161008), (40, 1015882), (56, 725630), (70, 580504), (80, 507941), (112, 362815), (140, 290252), (149, 272720), (280, 145126), (298, 136360), (487, 83440), (560, 72563), (596, 68180), (745, 54544), (974, 41720), (1043, 38960), (1192, 34090), (1490, 27272), (1948, 20860), (2086, 19480), (2384, 17045), (2435, 16688), (2980, 13636), (3409, 11920), (3896, 10430), (4172, 9740), (4870, 8344), (5215, 7792), (5960, 6818)]