4999980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 14112000

約数和(自身を除く): 9112020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 167, 334, 499, 501, 668, 835, 998, 1002, 1497, 1670, 1996, 2004, 2495, 2505, 2994, 3340, 4990, 5010, 5988, 7485, 9980, 10020, 14970, 29940, 83333, 166666, 249999, 333332, 416665, 499998, 833330, 999996, 1249995, 1666660, 2499990, 4999980]

約数ペア:

[(1, 4999980), (2, 2499990), (3, 1666660), (4, 1249995), (5, 999996), (6, 833330), (10, 499998), (12, 416665), (15, 333332), (20, 249999), (30, 166666), (60, 83333), (167, 29940), (334, 14970), (499, 10020), (501, 9980), (668, 7485), (835, 5988), (998, 5010), (1002, 4990), (1497, 3340), (1670, 2994), (1996, 2505), (2004, 2495)]