20162500

素因数分解:

$2^2\times 5^5\times {\mathrm{1613}}^1$

素因数の和:1642

約数の個数: 36

約数和(自身を含む): 44129988

約数和(自身を除く): 23967488

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 1613, 2500, 3125, 3226, 6250, 6452, 8065, 12500, 16130, 32260, 40325, 80650, 161300, 201625, 403250, 806500, 1008125, 2016250, 4032500, 5040625, 10081250, 20162500]

約数ペア:

[(1, 20162500), (2, 10081250), (4, 5040625), (5, 4032500), (10, 2016250), (20, 1008125), (25, 806500), (50, 403250), (100, 201625), (125, 161300), (250, 80650), (500, 40325), (625, 32260), (1250, 16130), (1613, 12500), (2500, 8065), (3125, 6452), (3226, 6250)]