20178855908

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{61223}}^1$

素因数の和:61412

約数の個数: 48

約数和(自身を含む): 38694547584

約数和(自身を除く): 18515691676

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 131, 148, 262, 524, 629, 1258, 2227, 2516, 4454, 4847, 8908, 9694, 19388, 61223, 82399, 122446, 164798, 244892, 329596, 1040791, 2081582, 2265251, 4163164, 4530502, 8020213, 9061004, 16040426, 32080852, 38509267, 77018534, 136343621, 154037068, 272687242, 296747881, 545374484, 593495762, 1186991524, 5044713977, 10089427954, 20178855908]

約数ペア:

[(1, 20178855908), (2, 10089427954), (4, 5044713977), (17, 1186991524), (34, 593495762), (37, 545374484), (68, 296747881), (74, 272687242), (131, 154037068), (148, 136343621), (262, 77018534), (524, 38509267), (629, 32080852), (1258, 16040426), (2227, 9061004), (2516, 8020213), (4454, 4530502), (4847, 4163164), (8908, 2265251), (9694, 2081582), (19388, 1040791), (61223, 329596), (82399, 244892), (122446, 164798)]