203498200

素因数分解:

$2^3\times 5^2\times {\mathrm{509}}^1\times {\mathrm{1999}}^1$

素因数の和:2524

約数の個数: 48

約数和(自身を含む): 474300000

約数和(自身を除く): 270801800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 509, 1018, 1999, 2036, 2545, 3998, 4072, 5090, 7996, 9995, 10180, 12725, 15992, 19990, 20360, 25450, 39980, 49975, 50900, 79960, 99950, 101800, 199900, 399800, 1017491, 2034982, 4069964, 5087455, 8139928, 10174910, 20349820, 25437275, 40699640, 50874550, 101749100, 203498200]

約数ペア:

[(1, 203498200), (2, 101749100), (4, 50874550), (5, 40699640), (8, 25437275), (10, 20349820), (20, 10174910), (25, 8139928), (40, 5087455), (50, 4069964), (100, 2034982), (200, 1017491), (509, 399800), (1018, 199900), (1999, 101800), (2036, 99950), (2545, 79960), (3998, 50900), (4072, 49975), (5090, 39980), (7996, 25450), (9995, 20360), (10180, 19990), (12725, 15992)]