20165972005

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{5861}}^1$

素因数の和:6345

約数の個数: 32

約数和(自身を含む): 25513768800

約数和(自身を除く): 5347796795

約数列:

[1, 5, 29, 61, 145, 305, 389, 1769, 1945, 5861, 8845, 11281, 23729, 29305, 56405, 118645, 169969, 357521, 688141, 849845, 1787605, 2279929, 3440705, 10368109, 11399645, 51840545, 66117941, 139075669, 330589705, 695378345, 4033194401, 20165972005]

約数ペア:

[(1, 20165972005), (5, 4033194401), (29, 695378345), (61, 330589705), (145, 139075669), (305, 66117941), (389, 51840545), (1769, 11399645), (1945, 10368109), (5861, 3440705), (8845, 2279929), (11281, 1787605), (23729, 849845), (29305, 688141), (56405, 357521), (118645, 169969)]