20490853122

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{47629}}^1$

素因数の和:47928

約数の個数: 64

約数和(自身を含む): 47187993600

約数和(自身を除く): 26697140478

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 257, 279, 514, 558, 771, 837, 1542, 1674, 2313, 4626, 6939, 7967, 13878, 15934, 23901, 47629, 47802, 71703, 95258, 142887, 143406, 215109, 285774, 428661, 430218, 857322, 1285983, 1476499, 2571966, 2952998, 4429497, 8858994, 12240653, 13288491, 24481306, 26576982, 36721959, 39865473, 73443918, 79730946, 110165877, 220331754, 330497631, 379460243, 660995262, 758920486, 1138380729, 2276761458, 3415142187, 6830284374, 10245426561, 20490853122]

約数ペア:

[(1, 20490853122), (2, 10245426561), (3, 6830284374), (6, 3415142187), (9, 2276761458), (18, 1138380729), (27, 758920486), (31, 660995262), (54, 379460243), (62, 330497631), (93, 220331754), (186, 110165877), (257, 79730946), (279, 73443918), (514, 39865473), (558, 36721959), (771, 26576982), (837, 24481306), (1542, 13288491), (1674, 12240653), (2313, 8858994), (4626, 4429497), (6939, 2952998), (7967, 2571966), (13878, 1476499), (15934, 1285983), (23901, 857322), (47629, 430218), (47802, 428661), (71703, 285774), (95258, 215109), (142887, 143406)]