81490684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{3803}}^1$

素因数の和:4305

約数の個数: 24

約数和(自身を含む): 155933568

約数和(自身を除く): 74442884

約数列:

[1, 2, 4, 11, 22, 44, 487, 974, 1948, 3803, 5357, 7606, 10714, 15212, 21428, 41833, 83666, 167332, 1852061, 3704122, 7408244, 20372671, 40745342, 81490684]

約数ペア:

[(1, 81490684), (2, 40745342), (4, 20372671), (11, 7408244), (22, 3704122), (44, 1852061), (487, 167332), (974, 83666), (1948, 41833), (3803, 21428), (5357, 15212), (7606, 10714)]