30920980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{81371}}^1$

素因数の和:81399

約数の個数: 24

約数和(自身を含む): 68352480

約数和(自身を除く): 37431500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 81371, 162742, 325484, 406855, 813710, 1546049, 1627420, 3092098, 6184196, 7730245, 15460490, 30920980]

約数ペア:

[(1, 30920980), (2, 15460490), (4, 7730245), (5, 6184196), (10, 3092098), (19, 1627420), (20, 1546049), (38, 813710), (76, 406855), (95, 325484), (190, 162742), (380, 81371)]