9914440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3491}}^1$

素因数の和:3573

約数の個数: 32

約数和(自身を含む): 22628160

約数和(自身を除く): 12713720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 3491, 6982, 13964, 17455, 27928, 34910, 69820, 139640, 247861, 495722, 991444, 1239305, 1982888, 2478610, 4957220, 9914440]

約数ペア:

[(1, 9914440), (2, 4957220), (4, 2478610), (5, 1982888), (8, 1239305), (10, 991444), (20, 495722), (40, 247861), (71, 139640), (142, 69820), (284, 34910), (355, 27928), (568, 17455), (710, 13964), (1420, 6982), (2840, 3491)]