18434440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6491}}^1$

素因数の和:6573

約数の個数: 32

約数和(自身を含む): 42068160

約数和(自身を除く): 23633720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6491, 12982, 25964, 32455, 51928, 64910, 129820, 259640, 460861, 921722, 1843444, 2304305, 3686888, 4608610, 9217220, 18434440]

約数ペア:

[(1, 18434440), (2, 9217220), (4, 4608610), (5, 3686888), (8, 2304305), (10, 1843444), (20, 921722), (40, 460861), (71, 259640), (142, 129820), (284, 64910), (355, 51928), (568, 32455), (710, 25964), (1420, 12982), (2840, 6491)]