15870980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13009}}^1$

素因数の和:13079

約数の個数: 24

約数和(自身を含む): 33878040

約数和(自身を除く): 18007060

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 13009, 26018, 52036, 65045, 130090, 260180, 793549, 1587098, 3174196, 3967745, 7935490, 15870980]

約数ペア:

[(1, 15870980), (2, 7935490), (4, 3967745), (5, 3174196), (10, 1587098), (20, 793549), (61, 260180), (122, 130090), (244, 65045), (305, 52036), (610, 26018), (1220, 13009)]