678713360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{652609}}^1$

素因数の和:652635

約数の個数: 40

約数和(自身を含む): 1699396440

約数和(自身を除く): 1020683080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 652609, 1305218, 2610436, 3263045, 5220872, 6526090, 8483917, 10441744, 13052180, 16967834, 26104360, 33935668, 42419585, 52208720, 67871336, 84839170, 135742672, 169678340, 339356680, 678713360]

約数ペア:

[(1, 678713360), (2, 339356680), (4, 169678340), (5, 135742672), (8, 84839170), (10, 67871336), (13, 52208720), (16, 42419585), (20, 33935668), (26, 26104360), (40, 16967834), (52, 13052180), (65, 10441744), (80, 8483917), (104, 6526090), (130, 5220872), (208, 3263045), (260, 2610436), (520, 1305218), (1040, 652609)]