72940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 175392

約数和(自身を除く): 102452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 1042, 2084, 2605, 3647, 5210, 7294, 10420, 14588, 18235, 36470, 72940]

約数ペア:

[(1, 72940), (2, 36470), (4, 18235), (5, 14588), (7, 10420), (10, 7294), (14, 5210), (20, 3647), (28, 2605), (35, 2084), (70, 1042), (140, 521)]