30951880

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2441}}^1$

素因数の和:2769

約数の個数: 32

約数和(自身を含む): 69890040

約数和(自身を除く): 38938160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2441, 2536, 3170, 4882, 6340, 9764, 12205, 12680, 19528, 24410, 48820, 97640, 773797, 1547594, 3095188, 3868985, 6190376, 7737970, 15475940, 30951880]

約数ペア:

[(1, 30951880), (2, 15475940), (4, 7737970), (5, 6190376), (8, 3868985), (10, 3095188), (20, 1547594), (40, 773797), (317, 97640), (634, 48820), (1268, 24410), (1585, 19528), (2441, 12680), (2536, 12205), (3170, 9764), (4882, 6340)]