489302120

素因数分解:

$2^3\times 5^1\times {\mathrm{2447}}^1\times {\mathrm{4999}}^1$

素因数の和:7457

約数の個数: 32

約数和(自身を含む): 1101600000

約数和(自身を除く): 612297880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2447, 4894, 4999, 9788, 9998, 12235, 19576, 19996, 24470, 24995, 39992, 48940, 49990, 97880, 99980, 199960, 12232553, 24465106, 48930212, 61162765, 97860424, 122325530, 244651060, 489302120]

約数ペア:

[(1, 489302120), (2, 244651060), (4, 122325530), (5, 97860424), (8, 61162765), (10, 48930212), (20, 24465106), (40, 12232553), (2447, 199960), (4894, 99980), (4999, 97880), (9788, 49990), (9998, 48940), (12235, 39992), (19576, 24995), (19996, 24470)]