208730990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{743}}^1\times {\mathrm{2161}}^1$

素因数の和:2924

約数の個数: 32

約数和(自身を含む): 405349056

約数和(自身を除く): 196618066

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 743, 1486, 2161, 3715, 4322, 7430, 9659, 10805, 19318, 21610, 28093, 48295, 56186, 96590, 140465, 280930, 1605623, 3211246, 8028115, 16056230, 20873099, 41746198, 104365495, 208730990]

約数ペア:

[(1, 208730990), (2, 104365495), (5, 41746198), (10, 20873099), (13, 16056230), (26, 8028115), (65, 3211246), (130, 1605623), (743, 280930), (1486, 140465), (2161, 96590), (3715, 56186), (4322, 48295), (7430, 28093), (9659, 21610), (10805, 19318)]