55725160

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12781}}^1$

素因数の和:12901

約数の個数: 32

約数和(自身を含む): 126541800

約数和(自身を除く): 70816640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 12781, 25562, 51124, 63905, 102248, 127810, 255620, 511240, 1393129, 2786258, 5572516, 6965645, 11145032, 13931290, 27862580, 55725160]

約数ペア:

[(1, 55725160), (2, 27862580), (4, 13931290), (5, 11145032), (8, 6965645), (10, 5572516), (20, 2786258), (40, 1393129), (109, 511240), (218, 255620), (436, 127810), (545, 102248), (872, 63905), (1090, 51124), (2180, 25562), (4360, 12781)]