20176508750

素因数分解:

$2^1\times 5^4\times {\mathrm{2113}}^1\times {\mathrm{7639}}^1$

素因数の和:9774

約数の個数: 40

約数和(自身を含む): 37841699280

約数和(自身を除く): 17665190530

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 2113, 4226, 7639, 10565, 15278, 21130, 38195, 52825, 76390, 105650, 190975, 264125, 381950, 528250, 954875, 1320625, 1909750, 2641250, 4774375, 9548750, 16141207, 32282414, 80706035, 161412070, 403530175, 807060350, 2017650875, 4035301750, 10088254375, 20176508750]

約数ペア:

[(1, 20176508750), (2, 10088254375), (5, 4035301750), (10, 2017650875), (25, 807060350), (50, 403530175), (125, 161412070), (250, 80706035), (625, 32282414), (1250, 16141207), (2113, 9548750), (4226, 4774375), (7639, 2641250), (10565, 1909750), (15278, 1320625), (21130, 954875), (38195, 528250), (52825, 381950), (76390, 264125), (105650, 190975)]