20483900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10781}}^1$

素因数の和:10814

約数の個数: 36

約数和(自身を含む): 46793880

約数和(自身を除く): 26309980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10781, 21562, 43124, 53905, 107810, 204839, 215620, 269525, 409678, 539050, 819356, 1024195, 1078100, 2048390, 4096780, 5120975, 10241950, 20483900]

約数ペア:

[(1, 20483900), (2, 10241950), (4, 5120975), (5, 4096780), (10, 2048390), (19, 1078100), (20, 1024195), (25, 819356), (38, 539050), (50, 409678), (76, 269525), (95, 215620), (100, 204839), (190, 107810), (380, 53905), (475, 43124), (950, 21562), (1900, 10781)]