30996920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8707}}^1$

素因数の和:8807

約数の個数: 32

約数和(自身を含む): 70534800

約数和(自身を除く): 39537880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 8707, 17414, 34828, 43535, 69656, 87070, 174140, 348280, 774923, 1549846, 3099692, 3874615, 6199384, 7749230, 15498460, 30996920]

約数ペア:

[(1, 30996920), (2, 15498460), (4, 7749230), (5, 6199384), (8, 3874615), (10, 3099692), (20, 1549846), (40, 774923), (89, 348280), (178, 174140), (356, 87070), (445, 69656), (712, 43535), (890, 34828), (1780, 17414), (3560, 8707)]