18404560

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7933}}^1$

素因数の和:7975

約数の個数: 40

約数和(自身を含む): 44271720

約数和(自身を除く): 25867160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 7933, 15866, 31732, 39665, 63464, 79330, 126928, 158660, 230057, 317320, 460114, 634640, 920228, 1150285, 1840456, 2300570, 3680912, 4601140, 9202280, 18404560]

約数ペア:

[(1, 18404560), (2, 9202280), (4, 4601140), (5, 3680912), (8, 2300570), (10, 1840456), (16, 1150285), (20, 920228), (29, 634640), (40, 460114), (58, 317320), (80, 230057), (116, 158660), (145, 126928), (232, 79330), (290, 63464), (464, 39665), (580, 31732), (1160, 15866), (2320, 7933)]