129615140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{381221}}^1$

素因数の和:381247

約数の個数: 24

約数和(自身を含む): 288203832

約数和(自身を除く): 158588692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 381221, 762442, 1524884, 1906105, 3812210, 6480757, 7624420, 12961514, 25923028, 32403785, 64807570, 129615140]

約数ペア:

[(1, 129615140), (2, 64807570), (4, 32403785), (5, 25923028), (10, 12961514), (17, 7624420), (20, 6480757), (34, 3812210), (68, 1906105), (85, 1524884), (170, 762442), (340, 381221)]