28727640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:617

約数の個数: 96

約数和(自身を含む): 94068000

約数和(自身を除く): 65340360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 199, 360, 398, 401, 597, 796, 802, 995, 1194, 1203, 1592, 1604, 1791, 1990, 2005, 2388, 2406, 2985, 3208, 3582, 3609, 3980, 4010, 4776, 4812, 5970, 6015, 7164, 7218, 7960, 8020, 8955, 9624, 11940, 12030, 14328, 14436, 16040, 17910, 18045, 23880, 24060, 28872, 35820, 36090, 48120, 71640, 72180, 79799, 144360, 159598, 239397, 319196, 398995, 478794, 638392, 718191, 797990, 957588, 1196985, 1436382, 1595980, 1915176, 2393970, 2872764, 3191960, 3590955, 4787940, 5745528, 7181910, 9575880, 14363820, 28727640]

約数ペア:

[(1, 28727640), (2, 14363820), (3, 9575880), (4, 7181910), (5, 5745528), (6, 4787940), (8, 3590955), (9, 3191960), (10, 2872764), (12, 2393970), (15, 1915176), (18, 1595980), (20, 1436382), (24, 1196985), (30, 957588), (36, 797990), (40, 718191), (45, 638392), (60, 478794), (72, 398995), (90, 319196), (120, 239397), (180, 159598), (199, 144360), (360, 79799), (398, 72180), (401, 71640), (597, 48120), (796, 36090), (802, 35820), (995, 28872), (1194, 24060), (1203, 23880), (1592, 18045), (1604, 17910), (1791, 16040), (1990, 14436), (2005, 14328), (2388, 12030), (2406, 11940), (2985, 9624), (3208, 8955), (3582, 8020), (3609, 7960), (3980, 7218), (4010, 7164), (4776, 6015), (4812, 5970)]