79719400

素因数分解:

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

素因数の和:2218

約数の個数: 48

約数和(自身を含む): 186372000

約数和(自身を除く): 106652600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 199, 200, 398, 796, 995, 1592, 1990, 2003, 3980, 4006, 4975, 7960, 8012, 9950, 10015, 16024, 19900, 20030, 39800, 40060, 50075, 80120, 100150, 200300, 398597, 400600, 797194, 1594388, 1992985, 3188776, 3985970, 7971940, 9964925, 15943880, 19929850, 39859700, 79719400]

約数ペア:

[(1, 79719400), (2, 39859700), (4, 19929850), (5, 15943880), (8, 9964925), (10, 7971940), (20, 3985970), (25, 3188776), (40, 1992985), (50, 1594388), (100, 797194), (199, 400600), (200, 398597), (398, 200300), (796, 100150), (995, 80120), (1592, 50075), (1990, 40060), (2003, 39800), (3980, 20030), (4006, 19900), (4975, 16024), (7960, 10015), (8012, 9950)]