123657980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101359}}^1$

素因数の和:101429

約数の個数: 24

約数和(自身を含む): 263941440

約数和(自身を除く): 140283460

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 101359, 202718, 405436, 506795, 1013590, 2027180, 6182899, 12365798, 24731596, 30914495, 61828990, 123657980]

約数ペア:

[(1, 123657980), (2, 61828990), (4, 30914495), (5, 24731596), (10, 12365798), (20, 6182899), (61, 2027180), (122, 1013590), (244, 506795), (305, 405436), (610, 202718), (1220, 101359)]