18420690535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1753}}^1\times {\mathrm{3943}}^1$

素因数の和:5755

約数の個数: 32

約数和(自身を含む): 24405913728

約数和(自身を除く): 5985223193

約数列:

[1, 5, 13, 41, 65, 205, 533, 1753, 2665, 3943, 8765, 19715, 22789, 51259, 71873, 113945, 161663, 256295, 359365, 808315, 934349, 2101619, 4671745, 6912079, 10508095, 34560395, 89857027, 283395239, 449285135, 1416976195, 3684138107, 18420690535]

約数ペア:

[(1, 18420690535), (5, 3684138107), (13, 1416976195), (41, 449285135), (65, 283395239), (205, 89857027), (533, 34560395), (1753, 10508095), (2665, 6912079), (3943, 4671745), (8765, 2101619), (19715, 934349), (22789, 808315), (51259, 359365), (71873, 256295), (113945, 161663)]