78858980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{54013}}^1$

素因数の和:54095

約数の個数: 24

約数和(自身を含む): 167875512

約数和(自身を除く): 89016532

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 54013, 108026, 216052, 270065, 540130, 1080260, 3942949, 7885898, 15771796, 19714745, 39429490, 78858980]

約数ペア:

[(1, 78858980), (2, 39429490), (4, 19714745), (5, 15771796), (10, 7885898), (20, 3942949), (73, 1080260), (146, 540130), (292, 270065), (365, 216052), (730, 108026), (1460, 54013)]