1394440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 3188160

約数和(自身を除く): 1793720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 491, 568, 710, 982, 1420, 1964, 2455, 2840, 3928, 4910, 9820, 19640, 34861, 69722, 139444, 174305, 278888, 348610, 697220, 1394440]

約数ペア:

[(1, 1394440), (2, 697220), (4, 348610), (5, 278888), (8, 174305), (10, 139444), (20, 69722), (40, 34861), (71, 19640), (142, 9820), (284, 4910), (355, 3928), (491, 2840), (568, 2455), (710, 1964), (982, 1420)]