77973790

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1109}}^1$

素因数の和:1284

約数の個数: 32

約数和(自身を含む): 143856000

約数和(自身を除く): 65882210

約数列:

[1, 2, 5, 10, 79, 89, 158, 178, 395, 445, 790, 890, 1109, 2218, 5545, 7031, 11090, 14062, 35155, 70310, 87611, 98701, 175222, 197402, 438055, 493505, 876110, 987010, 7797379, 15594758, 38986895, 77973790]

約数ペア:

[(1, 77973790), (2, 38986895), (5, 15594758), (10, 7797379), (79, 987010), (89, 876110), (158, 493505), (178, 438055), (395, 197402), (445, 175222), (790, 98701), (890, 87611), (1109, 70310), (2218, 35155), (5545, 14062), (7031, 11090)]