81128178

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{145391}}^1$

素因数の和:145430

約数の個数: 24

約数和(自身を含む): 181449216

約数和(自身を除く): 100321038

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 145391, 290782, 436173, 872346, 1308519, 2617038, 4507121, 9014242, 13521363, 27042726, 40564089, 81128178]

約数ペア:

[(1, 81128178), (2, 40564089), (3, 27042726), (6, 13521363), (9, 9014242), (18, 4507121), (31, 2617038), (62, 1308519), (93, 872346), (186, 436173), (279, 290782), (558, 145391)]