128869480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1009}}^1$

素因数の和:1154

約数の個数: 64

約数和(自身を含む): 302515200

約数和(自身を除く): 173645720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 155, 206, 248, 310, 412, 515, 620, 824, 1009, 1030, 1240, 2018, 2060, 3193, 4036, 4120, 5045, 6386, 8072, 10090, 12772, 15965, 20180, 25544, 31279, 31930, 40360, 62558, 63860, 103927, 125116, 127720, 156395, 207854, 250232, 312790, 415708, 519635, 625580, 831416, 1039270, 1251160, 2078540, 3221737, 4157080, 6443474, 12886948, 16108685, 25773896, 32217370, 64434740, 128869480]

約数ペア:

[(1, 128869480), (2, 64434740), (4, 32217370), (5, 25773896), (8, 16108685), (10, 12886948), (20, 6443474), (31, 4157080), (40, 3221737), (62, 2078540), (103, 1251160), (124, 1039270), (155, 831416), (206, 625580), (248, 519635), (310, 415708), (412, 312790), (515, 250232), (620, 207854), (824, 156395), (1009, 127720), (1030, 125116), (1240, 103927), (2018, 63860), (2060, 62558), (3193, 40360), (4036, 31930), (4120, 31279), (5045, 25544), (6386, 20180), (8072, 15965), (10090, 12772)]