20861779645

素因数分解:

$5^1\times 7^3\times {\mathrm{179}}^1\times {\mathrm{67957}}^1$

素因数の和:68162

約数の個数: 32

約数和(自身を含む): 29357856000

約数和(自身を除く): 8496076355

約数列:

[1, 5, 7, 35, 49, 179, 245, 343, 895, 1253, 1715, 6265, 8771, 43855, 61397, 67957, 306985, 339785, 475699, 2378495, 3329893, 12164303, 16649465, 23309251, 60821515, 85150121, 116546255, 425750605, 596050847, 2980254235, 4172355929, 20861779645]

約数ペア:

[(1, 20861779645), (5, 4172355929), (7, 2980254235), (35, 596050847), (49, 425750605), (179, 116546255), (245, 85150121), (343, 60821515), (895, 23309251), (1253, 16649465), (1715, 12164303), (6265, 3329893), (8771, 2378495), (43855, 475699), (61397, 339785), (67957, 306985)]