20128010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{683}}^1$

素因数の和:1118

約数の個数: 32

約数和(自身を含む): 41565312

約数和(自身を除く): 21437302

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 421, 683, 842, 1366, 2105, 2947, 3415, 4210, 4781, 5894, 6830, 9562, 14735, 23905, 29470, 47810, 287543, 575086, 1437715, 2012801, 2875430, 4025602, 10064005, 20128010]

約数ペア:

[(1, 20128010), (2, 10064005), (5, 4025602), (7, 2875430), (10, 2012801), (14, 1437715), (35, 575086), (70, 287543), (421, 47810), (683, 29470), (842, 23905), (1366, 14735), (2105, 9562), (2947, 6830), (3415, 5894), (4210, 4781)]