145245260

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{40123}}^1$

素因数の和:40313

約数の個数: 24

約数和(自身を含む): 306707856

約数和(自身を除く): 161462596

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 40123, 80246, 160492, 200615, 401230, 802460, 7262263, 14524526, 29049052, 36311315, 72622630, 145245260]

約数ペア:

[(1, 145245260), (2, 72622630), (4, 36311315), (5, 29049052), (10, 14524526), (20, 7262263), (181, 802460), (362, 401230), (724, 200615), (905, 160492), (1810, 80246), (3620, 40123)]