15943880

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2003}}^1$

素因数の和:2213

約数の個数: 32

約数和(自身を含む): 36072000

約数和(自身を除く): 20128120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2003, 3980, 4006, 7960, 8012, 10015, 16024, 20030, 40060, 80120, 398597, 797194, 1594388, 1992985, 3188776, 3985970, 7971940, 15943880]

約数ペア:

[(1, 15943880), (2, 7971940), (4, 3985970), (5, 3188776), (8, 1992985), (10, 1594388), (20, 797194), (40, 398597), (199, 80120), (398, 40060), (796, 20030), (995, 16024), (1592, 10015), (1990, 8012), (2003, 7960), (3980, 4006)]