71289920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17137}}^1$

素因数の和:17167

約数の個数: 56

約数和(自身を含む): 182828184

約数和(自身を除く): 111538264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 17137, 34274, 68548, 85685, 137096, 171370, 222781, 274192, 342740, 445562, 548384, 685480, 891124, 1096768, 1113905, 1370960, 1782248, 2227810, 2741920, 3564496, 4455620, 5483840, 7128992, 8911240, 14257984, 17822480, 35644960, 71289920]

約数ペア:

[(1, 71289920), (2, 35644960), (4, 17822480), (5, 14257984), (8, 8911240), (10, 7128992), (13, 5483840), (16, 4455620), (20, 3564496), (26, 2741920), (32, 2227810), (40, 1782248), (52, 1370960), (64, 1113905), (65, 1096768), (80, 891124), (104, 685480), (130, 548384), (160, 445562), (208, 342740), (260, 274192), (320, 222781), (416, 171370), (520, 137096), (832, 85685), (1040, 68548), (2080, 34274), (4160, 17137)]