197997620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{319351}}^1$

素因数の和:319391

約数の個数: 24

約数和(自身を含む): 429209088

約数和(自身を除く): 231211468

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 319351, 638702, 1277404, 1596755, 3193510, 6387020, 9899881, 19799762, 39599524, 49499405, 98998810, 197997620]

約数ペア:

[(1, 197997620), (2, 98998810), (4, 49499405), (5, 39599524), (10, 19799762), (20, 9899881), (31, 6387020), (62, 3193510), (124, 1596755), (155, 1277404), (310, 638702), (620, 319351)]