61405640

素因数分解:

$2^3\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1367}}^1$

素因数の和:2501

約数の個数: 32

約数和(自身を含む): 138386880

約数和(自身を除く): 76981240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1123, 1367, 2246, 2734, 4492, 5468, 5615, 6835, 8984, 10936, 11230, 13670, 22460, 27340, 44920, 54680, 1535141, 3070282, 6140564, 7675705, 12281128, 15351410, 30702820, 61405640]

約数ペア:

[(1, 61405640), (2, 30702820), (4, 15351410), (5, 12281128), (8, 7675705), (10, 6140564), (20, 3070282), (40, 1535141), (1123, 54680), (1367, 44920), (2246, 27340), (2734, 22460), (4492, 13670), (5468, 11230), (5615, 10936), (6835, 8984)]