127726420

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{4289}}^1$

素因数の和:5787

約数の個数: 24

約数和(自身を含む): 268468200

約数和(自身を除く): 140741780

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 4289, 5956, 7445, 8578, 14890, 17156, 21445, 29780, 42890, 85780, 6386321, 12772642, 25545284, 31931605, 63863210, 127726420]

約数ペア:

[(1, 127726420), (2, 63863210), (4, 31931605), (5, 25545284), (10, 12772642), (20, 6386321), (1489, 85780), (2978, 42890), (4289, 29780), (5956, 21445), (7445, 17156), (8578, 14890)]