28456740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12161}}^1$

素因数の和:12189

約数の個数: 72

約数和(自身を含む): 92966328

約数和(自身を除く): 64509588

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, 12161, 24322, 36483, 48644, 60805, 72966, 109449, 121610, 145932, 158093, 182415, 218898, 243220, 316186, 364830, 437796, 474279, 547245, 632372, 729660, 790465, 948558, 1094490, 1422837, 1580930, 1897116, 2188980, 2371395, 2845674, 3161860, 4742790, 5691348, 7114185, 9485580, 14228370, 28456740]

約数ペア:

[(1, 28456740), (2, 14228370), (3, 9485580), (4, 7114185), (5, 5691348), (6, 4742790), (9, 3161860), (10, 2845674), (12, 2371395), (13, 2188980), (15, 1897116), (18, 1580930), (20, 1422837), (26, 1094490), (30, 948558), (36, 790465), (39, 729660), (45, 632372), (52, 547245), (60, 474279), (65, 437796), (78, 364830), (90, 316186), (117, 243220), (130, 218898), (156, 182415), (180, 158093), (195, 145932), (234, 121610), (260, 109449), (390, 72966), (468, 60805), (585, 48644), (780, 36483), (1170, 24322), (2340, 12161)]