280308978

素因数分解:

$2^1\times 3^3\times {\mathrm{109}}^1\times {\mathrm{47623}}^1$

素因数の和:47743

約数の個数: 32

約数和(自身を含む): 628636800

約数和(自身を除く): 348327822

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 109, 218, 327, 654, 981, 1962, 2943, 5886, 47623, 95246, 142869, 285738, 428607, 857214, 1285821, 2571642, 5190907, 10381814, 15572721, 31145442, 46718163, 93436326, 140154489, 280308978]

約数ペア:

[(1, 280308978), (2, 140154489), (3, 93436326), (6, 46718163), (9, 31145442), (18, 15572721), (27, 10381814), (54, 5190907), (109, 2571642), (218, 1285821), (327, 857214), (654, 428607), (981, 285738), (1962, 142869), (2943, 95246), (5886, 47623)]