99919760

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2503}}^1$

素因数の和:3015

約数の個数: 40

約数和(自身を含む): 232872000

約数和(自身を除く): 132952240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1996, 2495, 2503, 3992, 4990, 5006, 7984, 9980, 10012, 12515, 19960, 20024, 25030, 39920, 40048, 50060, 100120, 200240, 1248997, 2497994, 4995988, 6244985, 9991976, 12489970, 19983952, 24979940, 49959880, 99919760]

約数ペア:

[(1, 99919760), (2, 49959880), (4, 24979940), (5, 19983952), (8, 12489970), (10, 9991976), (16, 6244985), (20, 4995988), (40, 2497994), (80, 1248997), (499, 200240), (998, 100120), (1996, 50060), (2495, 40048), (2503, 39920), (3992, 25030), (4990, 20024), (5006, 19960), (7984, 12515), (9980, 10012)]