19745560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25981}}^1$

素因数の和:26011

約数の個数: 32

約数和(自身を含む): 46767600

約数和(自身を除く): 27022040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 25981, 51962, 103924, 129905, 207848, 259810, 493639, 519620, 987278, 1039240, 1974556, 2468195, 3949112, 4936390, 9872780, 19745560]

約数ペア:

[(1, 19745560), (2, 9872780), (4, 4936390), (5, 3949112), (8, 2468195), (10, 1974556), (19, 1039240), (20, 987278), (38, 519620), (40, 493639), (76, 259810), (95, 207848), (152, 129905), (190, 103924), (380, 51962), (760, 25981)]