31456785

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1109}}^1$

素因数の和:1209

約数の個数: 32

約数和(自身を含む): 52853760

約数和(自身を除く): 21396975

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 305, 465, 915, 1109, 1891, 3327, 5545, 5673, 9455, 16635, 28365, 34379, 67649, 103137, 171895, 202947, 338245, 515685, 1014735, 2097119, 6291357, 10485595, 31456785]

約数ペア:

[(1, 31456785), (3, 10485595), (5, 6291357), (15, 2097119), (31, 1014735), (61, 515685), (93, 338245), (155, 202947), (183, 171895), (305, 103137), (465, 67649), (915, 34379), (1109, 28365), (1891, 16635), (3327, 9455), (5545, 5673)]