20792500

素因数分解:

$2^2\times 5^4\times {\mathrm{8317}}^1$

素因数の和:8341

約数の個数: 30

約数和(自身を含む): 45474506

約数和(自身を除く): 24682006

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 8317, 16634, 33268, 41585, 83170, 166340, 207925, 415850, 831700, 1039625, 2079250, 4158500, 5198125, 10396250, 20792500]

約数ペア:

[(1, 20792500), (2, 10396250), (4, 5198125), (5, 4158500), (10, 2079250), (20, 1039625), (25, 831700), (50, 415850), (100, 207925), (125, 166340), (250, 83170), (500, 41585), (625, 33268), (1250, 16634), (2500, 8317)]