19652560

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1471}}^1$

素因数の和:1651

約数の個数: 40

約数和(自身を含む): 45997056

約数和(自身を除く): 26344496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1471, 1670, 2672, 2942, 3340, 5884, 6680, 7355, 11768, 13360, 14710, 23536, 29420, 58840, 117680, 245657, 491314, 982628, 1228285, 1965256, 2456570, 3930512, 4913140, 9826280, 19652560]

約数ペア:

[(1, 19652560), (2, 9826280), (4, 4913140), (5, 3930512), (8, 2456570), (10, 1965256), (16, 1228285), (20, 982628), (40, 491314), (80, 245657), (167, 117680), (334, 58840), (668, 29420), (835, 23536), (1336, 14710), (1471, 13360), (1670, 11768), (2672, 7355), (2942, 6680), (3340, 5884)]