129615820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{381223}}^1$

素因数の和:381249

約数の個数: 24

約数和(自身を含む): 288205344

約数和(自身を除く): 158589524

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 381223, 762446, 1524892, 1906115, 3812230, 6480791, 7624460, 12961582, 25923164, 32403955, 64807910, 129615820]

約数ペア:

[(1, 129615820), (2, 64807910), (4, 32403955), (5, 25923164), (10, 12961582), (17, 7624460), (20, 6480791), (34, 3812230), (68, 1906115), (85, 1524892), (170, 762446), (340, 381223)]