71212720

素因数分解:

$2^4\times 5^1\times {\mathrm{890159}}^1$

素因数の和:890172

約数の個数: 20

約数和(自身を含む): 165569760

約数和(自身を除く): 94357040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 890159, 1780318, 3560636, 4450795, 7121272, 8901590, 14242544, 17803180, 35606360, 71212720]

約数ペア:

[(1, 71212720), (2, 35606360), (4, 17803180), (5, 14242544), (8, 8901590), (10, 7121272), (16, 4450795), (20, 3560636), (40, 1780318), (80, 890159)]