18662020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71777}}^1$

素因数の和:71799

約数の個数: 24

約数和(自身を含む): 42205464

約数和(自身を除く): 23543444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71777, 143554, 287108, 358885, 717770, 933101, 1435540, 1866202, 3732404, 4665505, 9331010, 18662020]

約数ペア:

[(1, 18662020), (2, 9331010), (4, 4665505), (5, 3732404), (10, 1866202), (13, 1435540), (20, 933101), (26, 717770), (52, 358885), (65, 287108), (130, 143554), (260, 71777)]