648291228

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{31723}}^1$

素因数の和:31874

約数の個数: 48

約数和(自身を含む): 1641526656

約数和(自身を除く): 993235428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 131, 156, 262, 393, 524, 786, 1572, 1703, 3406, 5109, 6812, 10218, 20436, 31723, 63446, 95169, 126892, 190338, 380676, 412399, 824798, 1237197, 1649596, 2474394, 4155713, 4948788, 8311426, 12467139, 16622852, 24934278, 49868556, 54024269, 108048538, 162072807, 216097076, 324145614, 648291228]

約数ペア:

[(1, 648291228), (2, 324145614), (3, 216097076), (4, 162072807), (6, 108048538), (12, 54024269), (13, 49868556), (26, 24934278), (39, 16622852), (52, 12467139), (78, 8311426), (131, 4948788), (156, 4155713), (262, 2474394), (393, 1649596), (524, 1237197), (786, 824798), (1572, 412399), (1703, 380676), (3406, 190338), (5109, 126892), (6812, 95169), (10218, 63446), (20436, 31723)]