260267920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{295759}}^1$

素因数の和:295783

約数の個数: 40

約数和(自身を含む): 660136320

約数和(自身を除く): 399868400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 295759, 591518, 1183036, 1478795, 2366072, 2957590, 3253349, 4732144, 5915180, 6506698, 11830360, 13013396, 16266745, 23660720, 26026792, 32533490, 52053584, 65066980, 130133960, 260267920]

約数ペア:

[(1, 260267920), (2, 130133960), (4, 65066980), (5, 52053584), (8, 32533490), (10, 26026792), (11, 23660720), (16, 16266745), (20, 13013396), (22, 11830360), (40, 6506698), (44, 5915180), (55, 4732144), (80, 3253349), (88, 2957590), (110, 2366072), (176, 1478795), (220, 1183036), (440, 591518), (880, 295759)]