81230416

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{163771}}^1$

素因数の和:163810

約数の個数: 20

約数和(自身を含む): 162461824

約数和(自身を除く): 81231408

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 163771, 327542, 655084, 1310168, 2620336, 5076901, 10153802, 20307604, 40615208, 81230416]

約数ペア:

[(1, 81230416), (2, 40615208), (4, 20307604), (8, 10153802), (16, 5076901), (31, 2620336), (62, 1310168), (124, 655084), (248, 327542), (496, 163771)]