20147157520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5139581}}^1$

素因数の和:5139608

約数の個数: 60

約数和(自身を含む): 54489848364

約数和(自身を除く): 34342690844

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 5139581, 10279162, 20558324, 25697905, 35977067, 41116648, 51395810, 71954134, 82233296, 102791620, 143908268, 179885335, 205583240, 251839469, 287816536, 359770670, 411166480, 503678938, 575633072, 719541340, 1007357876, 1259197345, 1439082680, 2014715752, 2518394690, 2878165360, 4029431504, 5036789380, 10073578760, 20147157520]

約数ペア:

[(1, 20147157520), (2, 10073578760), (4, 5036789380), (5, 4029431504), (7, 2878165360), (8, 2518394690), (10, 2014715752), (14, 1439082680), (16, 1259197345), (20, 1007357876), (28, 719541340), (35, 575633072), (40, 503678938), (49, 411166480), (56, 359770670), (70, 287816536), (80, 251839469), (98, 205583240), (112, 179885335), (140, 143908268), (196, 102791620), (245, 82233296), (280, 71954134), (392, 51395810), (490, 41116648), (560, 35977067), (784, 25697905), (980, 20558324), (1960, 10279162), (3920, 5139581)]