21562000

素因数分解:

$2^4\times 5^3\times {\mathrm{10781}}^1$

素因数の和:10804

約数の個数: 40

約数和(自身を含む): 52141752

約数和(自身を除く): 30579752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10781, 21562, 43124, 53905, 86248, 107810, 172496, 215620, 269525, 431240, 539050, 862480, 1078100, 1347625, 2156200, 2695250, 4312400, 5390500, 10781000, 21562000]

約数ペア:

[(1, 21562000), (2, 10781000), (4, 5390500), (5, 4312400), (8, 2695250), (10, 2156200), (16, 1347625), (20, 1078100), (25, 862480), (40, 539050), (50, 431240), (80, 269525), (100, 215620), (125, 172496), (200, 107810), (250, 86248), (400, 53905), (500, 43124), (1000, 21562), (2000, 10781)]