1018000

素因数分解:

$2^4\times 5^3\times {\mathrm{509}}^1$

素因数の和:532

約数の個数: 40

約数和(自身を含む): 2466360

約数和(自身を除く): 1448360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 509, 1000, 1018, 2000, 2036, 2545, 4072, 5090, 8144, 10180, 12725, 20360, 25450, 40720, 50900, 63625, 101800, 127250, 203600, 254500, 509000, 1018000]

約数ペア:

[(1, 1018000), (2, 509000), (4, 254500), (5, 203600), (8, 127250), (10, 101800), (16, 63625), (20, 50900), (25, 40720), (40, 25450), (50, 20360), (80, 12725), (100, 10180), (125, 8144), (200, 5090), (250, 4072), (400, 2545), (500, 2036), (509, 2000), (1000, 1018)]