279130020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{357859}}^1$

素因数の和:357884

約数の個数: 48

約数和(自身を含む): 841686720

約数和(自身を除く): 562556700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 357859, 715718, 1073577, 1431436, 1789295, 2147154, 3578590, 4294308, 4652167, 5367885, 7157180, 9304334, 10735770, 13956501, 18608668, 21471540, 23260835, 27913002, 46521670, 55826004, 69782505, 93043340, 139565010, 279130020]

約数ペア:

[(1, 279130020), (2, 139565010), (3, 93043340), (4, 69782505), (5, 55826004), (6, 46521670), (10, 27913002), (12, 23260835), (13, 21471540), (15, 18608668), (20, 13956501), (26, 10735770), (30, 9304334), (39, 7157180), (52, 5367885), (60, 4652167), (65, 4294308), (78, 3578590), (130, 2147154), (156, 1789295), (195, 1431436), (260, 1073577), (390, 715718), (780, 357859)]