38749640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15881}}^1$

素因数の和:15953

約数の個数: 32

約数和(自身を含む): 88621560

約数和(自身を除く): 49871920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 15881, 31762, 63524, 79405, 127048, 158810, 317620, 635240, 968741, 1937482, 3874964, 4843705, 7749928, 9687410, 19374820, 38749640]

約数ペア:

[(1, 38749640), (2, 19374820), (4, 9687410), (5, 7749928), (8, 4843705), (10, 3874964), (20, 1937482), (40, 968741), (61, 635240), (122, 317620), (244, 158810), (305, 127048), (488, 79405), (610, 63524), (1220, 31762), (2440, 15881)]