19716700

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2777}}^1$

素因数の和:2862

約数の個数: 36

約数和(自身を含む): 43403472

約数和(自身を除く): 23686772

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 2777, 3550, 5554, 7100, 11108, 13885, 27770, 55540, 69425, 138850, 197167, 277700, 394334, 788668, 985835, 1971670, 3943340, 4929175, 9858350, 19716700]

約数ペア:

[(1, 19716700), (2, 9858350), (4, 4929175), (5, 3943340), (10, 1971670), (20, 985835), (25, 788668), (50, 394334), (71, 277700), (100, 197167), (142, 138850), (284, 69425), (355, 55540), (710, 27770), (1420, 13885), (1775, 11108), (2777, 7100), (3550, 5554)]