5090000

素因数分解:

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

素因数の和:537

約数の個数: 50

約数和(自身を含む): 12347610

約数和(自身を除く): 7257610

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 509, 625, 1000, 1018, 1250, 2000, 2036, 2500, 2545, 4072, 5000, 5090, 8144, 10000, 10180, 12725, 20360, 25450, 40720, 50900, 63625, 101800, 127250, 203600, 254500, 318125, 509000, 636250, 1018000, 1272500, 2545000, 5090000]

約数ペア:

[(1, 5090000), (2, 2545000), (4, 1272500), (5, 1018000), (8, 636250), (10, 509000), (16, 318125), (20, 254500), (25, 203600), (40, 127250), (50, 101800), (80, 63625), (100, 50900), (125, 40720), (200, 25450), (250, 20360), (400, 12725), (500, 10180), (509, 10000), (625, 8144), (1000, 5090), (1018, 5000), (1250, 4072), (2000, 2545), (2036, 2500)]