20682500

素因数分解:

$2^2\times 5^4\times {\mathrm{8273}}^1$

素因数の和:8297

約数の個数: 30

約数和(自身を含む): 45233958

約数和(自身を除く): 24551458

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 8273, 16546, 33092, 41365, 82730, 165460, 206825, 413650, 827300, 1034125, 2068250, 4136500, 5170625, 10341250, 20682500]

約数ペア:

[(1, 20682500), (2, 10341250), (4, 5170625), (5, 4136500), (10, 2068250), (20, 1034125), (25, 827300), (50, 413650), (100, 206825), (125, 165460), (250, 82730), (500, 41365), (625, 33092), (1250, 16546), (2500, 8273)]