81975720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{499}}^1$

素因数の和:587

約数の個数: 96

約数和(自身を含む): 253260000

約数和(自身を除く): 171284280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 499, 555, 740, 888, 998, 1110, 1369, 1480, 1497, 1996, 2220, 2495, 2738, 2994, 3992, 4107, 4440, 4990, 5476, 5988, 6845, 7485, 8214, 9980, 10952, 11976, 13690, 14970, 16428, 18463, 19960, 20535, 27380, 29940, 32856, 36926, 41070, 54760, 55389, 59880, 73852, 82140, 92315, 110778, 147704, 164280, 184630, 221556, 276945, 369260, 443112, 553890, 683131, 738520, 1107780, 1366262, 2049393, 2215560, 2732524, 3415655, 4098786, 5465048, 6831310, 8197572, 10246965, 13662620, 16395144, 20493930, 27325240, 40987860, 81975720]

約数ペア:

[(1, 81975720), (2, 40987860), (3, 27325240), (4, 20493930), (5, 16395144), (6, 13662620), (8, 10246965), (10, 8197572), (12, 6831310), (15, 5465048), (20, 4098786), (24, 3415655), (30, 2732524), (37, 2215560), (40, 2049393), (60, 1366262), (74, 1107780), (111, 738520), (120, 683131), (148, 553890), (185, 443112), (222, 369260), (296, 276945), (370, 221556), (444, 184630), (499, 164280), (555, 147704), (740, 110778), (888, 92315), (998, 82140), (1110, 73852), (1369, 59880), (1480, 55389), (1497, 54760), (1996, 41070), (2220, 36926), (2495, 32856), (2738, 29940), (2994, 27380), (3992, 20535), (4107, 19960), (4440, 18463), (4990, 16428), (5476, 14970), (5988, 13690), (6845, 11976), (7485, 10952), (8214, 9980)]