20199778865

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{31723}}^1$

素因数の和:31878

約数の個数: 48

約数和(自身を含む): 29684527488

約数和(自身を除く): 9484748623

約数列:

[1, 5, 7, 23, 35, 49, 113, 115, 161, 245, 565, 791, 805, 1127, 2599, 3955, 5537, 5635, 12995, 18193, 27685, 31723, 90965, 127351, 158615, 222061, 636755, 729629, 1110305, 1554427, 3584699, 3648145, 5107403, 7772135, 17923495, 25092893, 25537015, 35751821, 82448077, 125464465, 175650251, 178759105, 412240385, 577136539, 878251255, 2885682695, 4039955773, 20199778865]

約数ペア:

[(1, 20199778865), (5, 4039955773), (7, 2885682695), (23, 878251255), (35, 577136539), (49, 412240385), (113, 178759105), (115, 175650251), (161, 125464465), (245, 82448077), (565, 35751821), (791, 25537015), (805, 25092893), (1127, 17923495), (2599, 7772135), (3955, 5107403), (5537, 3648145), (5635, 3584699), (12995, 1554427), (18193, 1110305), (27685, 729629), (31723, 636755), (90965, 222061), (127351, 158615)]