81003895

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1249}}^1$

素因数の和:1387

約数の個数: 32

約数和(自身を含む): 118800000

約数和(自身を除く): 37796105

約数列:

[1, 5, 7, 17, 35, 85, 109, 119, 545, 595, 763, 1249, 1853, 3815, 6245, 8743, 9265, 12971, 21233, 43715, 64855, 106165, 136141, 148631, 680705, 743155, 952987, 2314397, 4764935, 11571985, 16200779, 81003895]

約数ペア:

[(1, 81003895), (5, 16200779), (7, 11571985), (17, 4764935), (35, 2314397), (85, 952987), (109, 743155), (119, 680705), (545, 148631), (595, 136141), (763, 106165), (1249, 64855), (1853, 43715), (3815, 21233), (6245, 12971), (8743, 9265)]