207977990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:749

約数の個数: 64

約数和(自身を含む): 432967680

約数和(自身を除く): 224989690

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 191, 209, 382, 418, 521, 955, 1042, 1045, 1910, 2090, 2101, 2605, 3629, 4202, 5210, 5731, 7258, 9899, 10505, 11462, 18145, 19798, 21010, 28655, 36290, 39919, 49495, 57310, 79838, 98990, 99511, 108889, 199022, 199595, 217778, 399190, 497555, 544445, 995110, 1088890, 1094621, 1890709, 2189242, 3781418, 5473105, 9453545, 10946210, 18907090, 20797799, 41595598, 103988995, 207977990]

約数ペア:

[(1, 207977990), (2, 103988995), (5, 41595598), (10, 20797799), (11, 18907090), (19, 10946210), (22, 9453545), (38, 5473105), (55, 3781418), (95, 2189242), (110, 1890709), (190, 1094621), (191, 1088890), (209, 995110), (382, 544445), (418, 497555), (521, 399190), (955, 217778), (1042, 199595), (1045, 199022), (1910, 108889), (2090, 99511), (2101, 98990), (2605, 79838), (3629, 57310), (4202, 49495), (5210, 39919), (5731, 36290), (7258, 28655), (9899, 21010), (10505, 19798), (11462, 18145)]