639618564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{9739}}^1$

素因数の和:10180

約数の個数: 48

約数和(自身を含む): 1611229760

約数和(自身を除く): 971611196

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 421, 842, 1263, 1684, 2526, 5052, 5473, 9739, 10946, 16419, 19478, 21892, 29217, 32838, 38956, 58434, 65676, 116868, 126607, 253214, 379821, 506428, 759642, 1519284, 4100119, 8200238, 12300357, 16400476, 24600714, 49201428, 53301547, 106603094, 159904641, 213206188, 319809282, 639618564]

約数ペア:

[(1, 639618564), (2, 319809282), (3, 213206188), (4, 159904641), (6, 106603094), (12, 53301547), (13, 49201428), (26, 24600714), (39, 16400476), (52, 12300357), (78, 8200238), (156, 4100119), (421, 1519284), (842, 759642), (1263, 506428), (1684, 379821), (2526, 253214), (5052, 126607), (5473, 116868), (9739, 65676), (10946, 58434), (16419, 38956), (19478, 32838), (21892, 29217)]