1172840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 2673000

約数和(自身を除く): 1500160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 269, 436, 538, 545, 872, 1076, 1090, 1345, 2152, 2180, 2690, 4360, 5380, 10760, 29321, 58642, 117284, 146605, 234568, 293210, 586420, 1172840]

約数ペア:

[(1, 1172840), (2, 586420), (4, 293210), (5, 234568), (8, 146605), (10, 117284), (20, 58642), (40, 29321), (109, 10760), (218, 5380), (269, 4360), (436, 2690), (538, 2180), (545, 2152), (872, 1345), (1076, 1090)]