19917110

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 36908352

約数和(自身を除く): 16991242

約数列:

[1, 2, 5, 10, 61, 103, 122, 206, 305, 317, 515, 610, 634, 1030, 1585, 3170, 6283, 12566, 19337, 31415, 32651, 38674, 62830, 65302, 96685, 163255, 193370, 326510, 1991711, 3983422, 9958555, 19917110]

約数ペア:

[(1, 19917110), (2, 9958555), (5, 3983422), (10, 1991711), (61, 326510), (103, 193370), (122, 163255), (206, 96685), (305, 65302), (317, 62830), (515, 38674), (610, 32651), (634, 31415), (1030, 19337), (1585, 12566), (3170, 6283)]