30813680

素因数分解:

$2^4\times 5^1\times {\mathrm{385171}}^1$

素因数の和:385184

約数の個数: 20

約数和(自身を含む): 71641992

約数和(自身を除く): 40828312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 385171, 770342, 1540684, 1925855, 3081368, 3851710, 6162736, 7703420, 15406840, 30813680]

約数ペア:

[(1, 30813680), (2, 15406840), (4, 7703420), (5, 6162736), (8, 3851710), (10, 3081368), (16, 1925855), (20, 1540684), (40, 770342), (80, 385171)]