7949240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15287}}^1$

素因数の和:15311

約数の個数: 32

約数和(自身を含む): 19262880

約数和(自身を除く): 11313640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15287, 30574, 61148, 76435, 122296, 152870, 198731, 305740, 397462, 611480, 794924, 993655, 1589848, 1987310, 3974620, 7949240]

約数ペア:

[(1, 7949240), (2, 3974620), (4, 1987310), (5, 1589848), (8, 993655), (10, 794924), (13, 611480), (20, 397462), (26, 305740), (40, 198731), (52, 152870), (65, 122296), (104, 76435), (130, 61148), (260, 30574), (520, 15287)]