128767924

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{2539}}^1$

素因数の和:2983

約数の個数: 24

約数和(自身を含む): 233273600

約数和(自身を除く): 104505676

約数列:

[1, 2, 4, 31, 62, 124, 409, 818, 1636, 2539, 5078, 10156, 12679, 25358, 50716, 78709, 157418, 314836, 1038451, 2076902, 4153804, 32191981, 64383962, 128767924]

約数ペア:

[(1, 128767924), (2, 64383962), (4, 32191981), (31, 4153804), (62, 2076902), (124, 1038451), (409, 314836), (818, 157418), (1636, 78709), (2539, 50716), (5078, 25358), (10156, 12679)]