20147500

素因数分解:

$2^2\times 5^4\times {\mathrm{8059}}^1$

素因数の和:8083

約数の個数: 30

約数和(自身を含む): 44064020

約数和(自身を除く): 23916520

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 8059, 16118, 32236, 40295, 80590, 161180, 201475, 402950, 805900, 1007375, 2014750, 4029500, 5036875, 10073750, 20147500]

約数ペア:

[(1, 20147500), (2, 10073750), (4, 5036875), (5, 4029500), (10, 2014750), (20, 1007375), (25, 805900), (50, 402950), (100, 201475), (125, 161180), (250, 80590), (500, 40295), (625, 32236), (1250, 16118), (2500, 8059)]