20537200

素因数分解:

$2^4\times 5^2\times {\mathrm{51343}}^1$

素因数の和:51361

約数の個数: 30

約数和(自身を含む): 49341584

約数和(自身を除く): 28804384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51343, 102686, 205372, 256715, 410744, 513430, 821488, 1026860, 1283575, 2053720, 2567150, 4107440, 5134300, 10268600, 20537200]

約数ペア:

[(1, 20537200), (2, 10268600), (4, 5134300), (5, 4107440), (8, 2567150), (10, 2053720), (16, 1283575), (20, 1026860), (25, 821488), (40, 513430), (50, 410744), (80, 256715), (100, 205372), (200, 102686), (400, 51343)]