81315190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{4273}}^1$

素因数の和:4464

約数の個数: 32

約数和(自身を含む): 160634016

約数和(自身を除く): 79318826

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 173, 346, 865, 1730, 1903, 3806, 4273, 8546, 9515, 19030, 21365, 42730, 47003, 94006, 235015, 470030, 739229, 1478458, 3696145, 7392290, 8131519, 16263038, 40657595, 81315190]

約数ペア:

[(1, 81315190), (2, 40657595), (5, 16263038), (10, 8131519), (11, 7392290), (22, 3696145), (55, 1478458), (110, 739229), (173, 470030), (346, 235015), (865, 94006), (1730, 47003), (1903, 42730), (3806, 21365), (4273, 19030), (8546, 9515)]