25991576

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{509}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 52693200

約数和(自身を除く): 26701624

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 491, 509, 982, 1018, 1964, 2036, 3928, 4072, 6383, 6617, 12766, 13234, 25532, 26468, 51064, 52936, 249919, 499838, 999676, 1999352, 3248947, 6497894, 12995788, 25991576]

約数ペア:

[(1, 25991576), (2, 12995788), (4, 6497894), (8, 3248947), (13, 1999352), (26, 999676), (52, 499838), (104, 249919), (491, 52936), (509, 51064), (982, 26468), (1018, 25532), (1964, 13234), (2036, 12766), (3928, 6617), (4072, 6383)]