30781420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9803}}^1$

素因数の和:9969

約数の個数: 24

約数和(自身を含む): 65059344

約数和(自身を除く): 34277924

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 9803, 19606, 39212, 49015, 98030, 196060, 1539071, 3078142, 6156284, 7695355, 15390710, 30781420]

約数ペア:

[(1, 30781420), (2, 15390710), (4, 7695355), (5, 6156284), (10, 3078142), (20, 1539071), (157, 196060), (314, 98030), (628, 49015), (785, 39212), (1570, 19606), (3140, 9803)]