128802920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{3001}}^1$

素因数の和:3078

約数の個数: 64

約数和(自身を含む): 308005200

約数和(自身を除く): 179202280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 232, 290, 296, 370, 580, 740, 1073, 1160, 1480, 2146, 3001, 4292, 5365, 6002, 8584, 10730, 12004, 15005, 21460, 24008, 30010, 42920, 60020, 87029, 111037, 120040, 174058, 222074, 348116, 435145, 444148, 555185, 696232, 870290, 888296, 1110370, 1740580, 2220740, 3220073, 3481160, 4441480, 6440146, 12880292, 16100365, 25760584, 32200730, 64401460, 128802920]

約数ペア:

[(1, 128802920), (2, 64401460), (4, 32200730), (5, 25760584), (8, 16100365), (10, 12880292), (20, 6440146), (29, 4441480), (37, 3481160), (40, 3220073), (58, 2220740), (74, 1740580), (116, 1110370), (145, 888296), (148, 870290), (185, 696232), (232, 555185), (290, 444148), (296, 435145), (370, 348116), (580, 222074), (740, 174058), (1073, 120040), (1160, 111037), (1480, 87029), (2146, 60020), (3001, 42920), (4292, 30010), (5365, 24008), (6002, 21460), (8584, 15005), (10730, 12004)]