20542781935

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1531}}^1\times {\mathrm{6659}}^1$

素因数の和:8239

約数の個数: 32

約数和(自身を含む): 27425986560

約数和(自身を除く): 6883204625

約数列:

[1, 5, 13, 31, 65, 155, 403, 1531, 2015, 6659, 7655, 19903, 33295, 47461, 86567, 99515, 206429, 237305, 432835, 616993, 1032145, 2683577, 3084965, 10194929, 13417885, 50974645, 132534077, 316042799, 662670385, 1580213995, 4108556387, 20542781935]

約数ペア:

[(1, 20542781935), (5, 4108556387), (13, 1580213995), (31, 662670385), (65, 316042799), (155, 132534077), (403, 50974645), (1531, 13417885), (2015, 10194929), (6659, 3084965), (7655, 2683577), (19903, 1032145), (33295, 616993), (47461, 432835), (86567, 237305), (99515, 206429)]