25820740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{487}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 59520384

約数和(自身を除く): 33699644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 241, 482, 487, 964, 974, 1205, 1948, 2410, 2435, 2651, 4820, 4870, 5302, 5357, 9740, 10604, 10714, 13255, 21428, 26510, 26785, 53020, 53570, 107140, 117367, 234734, 469468, 586835, 1173670, 1291037, 2347340, 2582074, 5164148, 6455185, 12910370, 25820740]

約数ペア:

[(1, 25820740), (2, 12910370), (4, 6455185), (5, 5164148), (10, 2582074), (11, 2347340), (20, 1291037), (22, 1173670), (44, 586835), (55, 469468), (110, 234734), (220, 117367), (241, 107140), (482, 53570), (487, 53020), (964, 26785), (974, 26510), (1205, 21428), (1948, 13255), (2410, 10714), (2435, 10604), (2651, 9740), (4820, 5357), (4870, 5302)]