71281800

素因数分解:

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

素因数の和:420

約数の個数: 108

約数和(自身を含む): 240597045

約数和(自身を除く): 169315245

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 199, 200, 225, 300, 360, 398, 450, 597, 600, 796, 900, 995, 1194, 1592, 1791, 1800, 1990, 2388, 2985, 3582, 3980, 4776, 4975, 5970, 7164, 7960, 8955, 9950, 11940, 14328, 14925, 17910, 19900, 23880, 29850, 35820, 39601, 39800, 44775, 59700, 71640, 79202, 89550, 118803, 119400, 158404, 179100, 198005, 237606, 316808, 356409, 358200, 396010, 475212, 594015, 712818, 792020, 950424, 990025, 1188030, 1425636, 1584040, 1782045, 1980050, 2376060, 2851272, 2970075, 3564090, 3960100, 4752120, 5940150, 7128180, 7920200, 8910225, 11880300, 14256360, 17820450, 23760600, 35640900, 71281800]

約数ペア:

[(1, 71281800), (2, 35640900), (3, 23760600), (4, 17820450), (5, 14256360), (6, 11880300), (8, 8910225), (9, 7920200), (10, 7128180), (12, 5940150), (15, 4752120), (18, 3960100), (20, 3564090), (24, 2970075), (25, 2851272), (30, 2376060), (36, 1980050), (40, 1782045), (45, 1584040), (50, 1425636), (60, 1188030), (72, 990025), (75, 950424), (90, 792020), (100, 712818), (120, 594015), (150, 475212), (180, 396010), (199, 358200), (200, 356409), (225, 316808), (300, 237606), (360, 198005), (398, 179100), (450, 158404), (597, 119400), (600, 118803), (796, 89550), (900, 79202), (995, 71640), (1194, 59700), (1592, 44775), (1791, 39800), (1800, 39601), (1990, 35820), (2388, 29850), (2985, 23880), (3582, 19900), (3980, 17910), (4776, 14925), (4975, 14328), (5970, 11940), (7164, 9950), (7960, 8955)]