20007100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{6899}}^1$

素因数の和:6942

約数の個数: 36

約数和(自身を含む): 44919000

約数和(自身を除く): 24911900

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 6899, 13798, 27596, 34495, 68990, 137980, 172475, 200071, 344950, 400142, 689900, 800284, 1000355, 2000710, 4001420, 5001775, 10003550, 20007100]

約数ペア:

[(1, 20007100), (2, 10003550), (4, 5001775), (5, 4001420), (10, 2000710), (20, 1000355), (25, 800284), (29, 689900), (50, 400142), (58, 344950), (100, 200071), (116, 172475), (145, 137980), (290, 68990), (580, 34495), (725, 27596), (1450, 13798), (2900, 6899)]