19374820

素因数分解:

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

素因数の和:15951

約数の個数: 24

約数和(自身を含む): 41356728

約数和(自身を除く): 21981908

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15881, 31762, 63524, 79405, 158810, 317620, 968741, 1937482, 3874964, 4843705, 9687410, 19374820]

約数ペア:

[(1, 19374820), (2, 9687410), (4, 4843705), (5, 3874964), (10, 1937482), (20, 968741), (61, 317620), (122, 158810), (244, 79405), (305, 63524), (610, 31762), (1220, 15881)]