691120

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 40

約数和(自身を含む): 1647216

約数和(自身を除く): 956096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 163, 212, 265, 326, 424, 530, 652, 815, 848, 1060, 1304, 1630, 2120, 2608, 3260, 4240, 6520, 8639, 13040, 17278, 34556, 43195, 69112, 86390, 138224, 172780, 345560, 691120]

約数ペア:

[(1, 691120), (2, 345560), (4, 172780), (5, 138224), (8, 86390), (10, 69112), (16, 43195), (20, 34556), (40, 17278), (53, 13040), (80, 8639), (106, 6520), (163, 4240), (212, 3260), (265, 2608), (326, 2120), (424, 1630), (530, 1304), (652, 1060), (815, 848)]