212455000

素因数分解:

$2^3\times 5^4\times {\mathrm{42491}}^1$

素因数の和:42517

約数の個数: 40

約数和(自身を含む): 497793780

約数和(自身を除く): 285338780

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 42491, 84982, 169964, 212455, 339928, 424910, 849820, 1062275, 1699640, 2124550, 4249100, 5311375, 8498200, 10622750, 21245500, 26556875, 42491000, 53113750, 106227500, 212455000]

約数ペア:

[(1, 212455000), (2, 106227500), (4, 53113750), (5, 42491000), (8, 26556875), (10, 21245500), (20, 10622750), (25, 8498200), (40, 5311375), (50, 4249100), (100, 2124550), (125, 1699640), (200, 1062275), (250, 849820), (500, 424910), (625, 339928), (1000, 212455), (1250, 169964), (2500, 84982), (5000, 42491)]