81594760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{156913}}^1$

素因数の和:156937

約数の個数: 32

約数和(自身を含む): 197711640

約数和(自身を除く): 116116880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 156913, 313826, 627652, 784565, 1255304, 1569130, 2039869, 3138260, 4079738, 6276520, 8159476, 10199345, 16318952, 20398690, 40797380, 81594760]

約数ペア:

[(1, 81594760), (2, 40797380), (4, 20398690), (5, 16318952), (8, 10199345), (10, 8159476), (13, 6276520), (20, 4079738), (26, 3138260), (40, 2039869), (52, 1569130), (65, 1255304), (104, 784565), (130, 627652), (260, 313826), (520, 156913)]