721269978

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{13781}}^1$

素因数の和:13871

約数の個数: 64

約数和(自身を含む): 1722639744

約数和(自身を除く): 1001369766

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 61, 66, 78, 122, 143, 183, 286, 366, 429, 671, 793, 858, 1342, 1586, 2013, 2379, 4026, 4758, 8723, 13781, 17446, 26169, 27562, 41343, 52338, 82686, 151591, 179153, 303182, 358306, 454773, 537459, 840641, 909546, 1074918, 1681282, 1970683, 2521923, 3941366, 5043846, 5912049, 9247051, 10928333, 11824098, 18494102, 21856666, 27741153, 32784999, 55482306, 65569998, 120211663, 240423326, 360634989, 721269978]

約数ペア:

[(1, 721269978), (2, 360634989), (3, 240423326), (6, 120211663), (11, 65569998), (13, 55482306), (22, 32784999), (26, 27741153), (33, 21856666), (39, 18494102), (61, 11824098), (66, 10928333), (78, 9247051), (122, 5912049), (143, 5043846), (183, 3941366), (286, 2521923), (366, 1970683), (429, 1681282), (671, 1074918), (793, 909546), (858, 840641), (1342, 537459), (1586, 454773), (2013, 358306), (2379, 303182), (4026, 179153), (4758, 151591), (8723, 82686), (13781, 52338), (17446, 41343), (26169, 27562)]