260249620

素因数分解:

$2^2\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{7561}}^1$

素因数の和:9291

約数の個数: 24

約数和(自身を含む): 546914088

約数和(自身を除く): 286664468

約数列:

[1, 2, 4, 5, 10, 20, 1721, 3442, 6884, 7561, 8605, 15122, 17210, 30244, 34420, 37805, 75610, 151220, 13012481, 26024962, 52049924, 65062405, 130124810, 260249620]

約数ペア:

[(1, 260249620), (2, 130124810), (4, 65062405), (5, 52049924), (10, 26024962), (20, 13012481), (1721, 151220), (3442, 75610), (6884, 37805), (7561, 34420), (8605, 30244), (15122, 17210)]