28703760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{601}}^1$

素因数の和:816

約数の個数: 80

約数和(自身を含む): 89577600

約数和(自身を除く): 60873840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 199, 240, 398, 597, 601, 796, 995, 1194, 1202, 1592, 1803, 1990, 2388, 2404, 2985, 3005, 3184, 3606, 3980, 4776, 4808, 5970, 6010, 7212, 7960, 9015, 9552, 9616, 11940, 12020, 14424, 15920, 18030, 23880, 24040, 28848, 36060, 47760, 48080, 72120, 119599, 144240, 239198, 358797, 478396, 597995, 717594, 956792, 1195990, 1435188, 1793985, 1913584, 2391980, 2870376, 3587970, 4783960, 5740752, 7175940, 9567920, 14351880, 28703760]

約数ペア:

[(1, 28703760), (2, 14351880), (3, 9567920), (4, 7175940), (5, 5740752), (6, 4783960), (8, 3587970), (10, 2870376), (12, 2391980), (15, 1913584), (16, 1793985), (20, 1435188), (24, 1195990), (30, 956792), (40, 717594), (48, 597995), (60, 478396), (80, 358797), (120, 239198), (199, 144240), (240, 119599), (398, 72120), (597, 48080), (601, 47760), (796, 36060), (995, 28848), (1194, 24040), (1202, 23880), (1592, 18030), (1803, 15920), (1990, 14424), (2388, 12020), (2404, 11940), (2985, 9616), (3005, 9552), (3184, 9015), (3606, 7960), (3980, 7212), (4776, 6010), (4808, 5970)]