81811560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{681763}}^1$

素因数の和:681777

約数の個数: 32

約数和(自身を含む): 245435040

約数和(自身を除く): 163623480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 681763, 1363526, 2045289, 2727052, 3408815, 4090578, 5454104, 6817630, 8181156, 10226445, 13635260, 16362312, 20452890, 27270520, 40905780, 81811560]

約数ペア:

[(1, 81811560), (2, 40905780), (3, 27270520), (4, 20452890), (5, 16362312), (6, 13635260), (8, 10226445), (10, 8181156), (12, 6817630), (15, 5454104), (20, 4090578), (24, 3408815), (30, 2727052), (40, 2045289), (60, 1363526), (120, 681763)]