68386845

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 111939840

約数和(自身を除く): 43552995

約数列:

[1, 3, 5, 15, 71, 157, 213, 355, 409, 471, 785, 1065, 1227, 2045, 2355, 6135, 11147, 29039, 33441, 55735, 64213, 87117, 145195, 167205, 192639, 321065, 435585, 963195, 4559123, 13677369, 22795615, 68386845]

約数ペア:

[(1, 68386845), (3, 22795615), (5, 13677369), (15, 4559123), (71, 963195), (157, 435585), (213, 321065), (355, 192639), (409, 167205), (471, 145195), (785, 87117), (1065, 64213), (1227, 55735), (2045, 33441), (2355, 29039), (6135, 11147)]