4998880

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 11944800

約数和(自身を除く): 6945920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 199, 314, 398, 628, 785, 796, 995, 1256, 1570, 1592, 1990, 2512, 3140, 3184, 3980, 5024, 6280, 6368, 7960, 12560, 15920, 25120, 31243, 31840, 62486, 124972, 156215, 249944, 312430, 499888, 624860, 999776, 1249720, 2499440, 4998880]

約数ペア:

[(1, 4998880), (2, 2499440), (4, 1249720), (5, 999776), (8, 624860), (10, 499888), (16, 312430), (20, 249944), (32, 156215), (40, 124972), (80, 62486), (157, 31840), (160, 31243), (199, 25120), (314, 15920), (398, 12560), (628, 7960), (785, 6368), (796, 6280), (995, 5024), (1256, 3980), (1570, 3184), (1592, 3140), (1990, 2512)]