8065000

素因数分解:

$2^3\times 5^4\times {\mathrm{1613}}^1$

素因数の和:1639

約数の個数: 40

約数和(自身を含む): 18908010

約数和(自身を除く): 10843010

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 1613, 2500, 3226, 5000, 6452, 8065, 12904, 16130, 32260, 40325, 64520, 80650, 161300, 201625, 322600, 403250, 806500, 1008125, 1613000, 2016250, 4032500, 8065000]

約数ペア:

[(1, 8065000), (2, 4032500), (4, 2016250), (5, 1613000), (8, 1008125), (10, 806500), (20, 403250), (25, 322600), (40, 201625), (50, 161300), (100, 80650), (125, 64520), (200, 40325), (250, 32260), (500, 16130), (625, 12904), (1000, 8065), (1250, 6452), (1613, 5000), (2500, 3226)]