207960980

素因数分解:

$2^2\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{8017}}^1$

素因数の和:9323

約数の個数: 24

約数和(自身を含む): 437109288

約数和(自身を除く): 229148308

約数列:

[1, 2, 4, 5, 10, 20, 1297, 2594, 5188, 6485, 8017, 12970, 16034, 25940, 32068, 40085, 80170, 160340, 10398049, 20796098, 41592196, 51990245, 103980490, 207960980]

約数ペア:

[(1, 207960980), (2, 103980490), (4, 51990245), (5, 41592196), (10, 20796098), (20, 10398049), (1297, 160340), (2594, 80170), (5188, 40085), (6485, 32068), (8017, 25940), (12970, 16034)]