81228464

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{10093}}^1$

素因数の和:10604

約数の個数: 20

約数和(自身を含む): 157708656

約数和(自身を除く): 76480192

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 4024, 8048, 10093, 20186, 40372, 80744, 161488, 5076779, 10153558, 20307116, 40614232, 81228464]

約数ペア:

[(1, 81228464), (2, 40614232), (4, 20307116), (8, 10153558), (16, 5076779), (503, 161488), (1006, 80744), (2012, 40372), (4024, 20186), (8048, 10093)]