21685000

素因数分解:

$2^3\times 5^4\times {\mathrm{4337}}^1$

素因数の和:4363

約数の個数: 40

約数和(自身を含む): 50819670

約数和(自身を除く): 29134670

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 4337, 5000, 8674, 17348, 21685, 34696, 43370, 86740, 108425, 173480, 216850, 433700, 542125, 867400, 1084250, 2168500, 2710625, 4337000, 5421250, 10842500, 21685000]

約数ペア:

[(1, 21685000), (2, 10842500), (4, 5421250), (5, 4337000), (8, 2710625), (10, 2168500), (20, 1084250), (25, 867400), (40, 542125), (50, 433700), (100, 216850), (125, 173480), (200, 108425), (250, 86740), (500, 43370), (625, 34696), (1000, 21685), (1250, 17348), (2500, 8674), (4337, 5000)]