81654456

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261713}}^1$

素因数の和:261735

約数の個数: 32

約数和(自身を含む): 219839760

約数和(自身を除く): 138185304

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 261713, 523426, 785139, 1046852, 1570278, 2093704, 3140556, 3402269, 6281112, 6804538, 10206807, 13609076, 20413614, 27218152, 40827228, 81654456]

約数ペア:

[(1, 81654456), (2, 40827228), (3, 27218152), (4, 20413614), (6, 13609076), (8, 10206807), (12, 6804538), (13, 6281112), (24, 3402269), (26, 3140556), (39, 2093704), (52, 1570278), (78, 1046852), (104, 785139), (156, 523426), (312, 261713)]