20504950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13229}}^1$

素因数の和:13272

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 18867530

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13229, 26458, 66145, 132290, 330725, 410099, 661450, 820198, 2050495, 4100990, 10252475, 20504950]

約数ペア:

[(1, 20504950), (2, 10252475), (5, 4100990), (10, 2050495), (25, 820198), (31, 661450), (50, 410099), (62, 330725), (155, 132290), (310, 66145), (775, 26458), (1550, 13229)]