31460120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19183}}^1$

素因数の和:19235

約数の個数: 32

約数和(自身を含む): 72515520

約数和(自身を除く): 41055400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 19183, 38366, 76732, 95915, 153464, 191830, 383660, 767320, 786503, 1573006, 3146012, 3932515, 6292024, 7865030, 15730060, 31460120]

約数ペア:

[(1, 31460120), (2, 15730060), (4, 7865030), (5, 6292024), (8, 3932515), (10, 3146012), (20, 1573006), (40, 786503), (41, 767320), (82, 383660), (164, 191830), (205, 153464), (328, 95915), (410, 76732), (820, 38366), (1640, 19183)]