280690020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{119953}}^1$

素因数の和:119981

約数の個数: 72

約数和(自身を含む): 916928376

約数和(自身を除く): 636238356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 119953, 239906, 359859, 479812, 599765, 719718, 1079577, 1199530, 1439436, 1559389, 1799295, 2159154, 2399060, 3118778, 3598590, 4318308, 4678167, 5397885, 6237556, 7197180, 7796945, 9356334, 10795770, 14034501, 15593890, 18712668, 21591540, 23390835, 28069002, 31187780, 46781670, 56138004, 70172505, 93563340, 140345010, 280690020]

約数ペア:

[(1, 280690020), (2, 140345010), (3, 93563340), (4, 70172505), (5, 56138004), (6, 46781670), (9, 31187780), (10, 28069002), (12, 23390835), (13, 21591540), (15, 18712668), (18, 15593890), (20, 14034501), (26, 10795770), (30, 9356334), (36, 7796945), (39, 7197180), (45, 6237556), (52, 5397885), (60, 4678167), (65, 4318308), (78, 3598590), (90, 3118778), (117, 2399060), (130, 2159154), (156, 1799295), (180, 1559389), (195, 1439436), (234, 1199530), (260, 1079577), (390, 719718), (468, 599765), (585, 479812), (780, 359859), (1170, 239906), (2340, 119953)]