8350000

素因数分解:

$2^4\times 5^5\times {\mathrm{167}}^1$

素因数の和:200

約数の個数: 60

約数和(自身を含む): 20342448

約数和(自身を除く): 11992448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 167, 200, 250, 334, 400, 500, 625, 668, 835, 1000, 1250, 1336, 1670, 2000, 2500, 2672, 3125, 3340, 4175, 5000, 6250, 6680, 8350, 10000, 12500, 13360, 16700, 20875, 25000, 33400, 41750, 50000, 66800, 83500, 104375, 167000, 208750, 334000, 417500, 521875, 835000, 1043750, 1670000, 2087500, 4175000, 8350000]

約数ペア:

[(1, 8350000), (2, 4175000), (4, 2087500), (5, 1670000), (8, 1043750), (10, 835000), (16, 521875), (20, 417500), (25, 334000), (40, 208750), (50, 167000), (80, 104375), (100, 83500), (125, 66800), (167, 50000), (200, 41750), (250, 33400), (334, 25000), (400, 20875), (500, 16700), (625, 13360), (668, 12500), (835, 10000), (1000, 8350), (1250, 6680), (1336, 6250), (1670, 5000), (2000, 4175), (2500, 3340), (2672, 3125)]