15508920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 128

約数和(自身を含む): 54720000

約数和(自身を除く): 39211080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 499, 518, 555, 740, 777, 840, 888, 998, 1036, 1110, 1295, 1480, 1497, 1554, 1996, 2072, 2220, 2495, 2590, 2994, 3108, 3493, 3885, 3992, 4440, 4990, 5180, 5988, 6216, 6986, 7485, 7770, 9980, 10360, 10479, 11976, 13972, 14970, 15540, 17465, 18463, 19960, 20958, 27944, 29940, 31080, 34930, 36926, 41916, 52395, 55389, 59880, 69860, 73852, 83832, 92315, 104790, 110778, 129241, 139720, 147704, 184630, 209580, 221556, 258482, 276945, 369260, 387723, 419160, 443112, 516964, 553890, 646205, 738520, 775446, 1033928, 1107780, 1292410, 1550892, 1938615, 2215560, 2584820, 3101784, 3877230, 5169640, 7754460, 15508920]

約数ペア:

[(1, 15508920), (2, 7754460), (3, 5169640), (4, 3877230), (5, 3101784), (6, 2584820), (7, 2215560), (8, 1938615), (10, 1550892), (12, 1292410), (14, 1107780), (15, 1033928), (20, 775446), (21, 738520), (24, 646205), (28, 553890), (30, 516964), (35, 443112), (37, 419160), (40, 387723), (42, 369260), (56, 276945), (60, 258482), (70, 221556), (74, 209580), (84, 184630), (105, 147704), (111, 139720), (120, 129241), (140, 110778), (148, 104790), (168, 92315), (185, 83832), (210, 73852), (222, 69860), (259, 59880), (280, 55389), (296, 52395), (370, 41916), (420, 36926), (444, 34930), (499, 31080), (518, 29940), (555, 27944), (740, 20958), (777, 19960), (840, 18463), (888, 17465), (998, 15540), (1036, 14970), (1110, 13972), (1295, 11976), (1480, 10479), (1497, 10360), (1554, 9980), (1996, 7770), (2072, 7485), (2220, 6986), (2495, 6216), (2590, 5988), (2994, 5180), (3108, 4990), (3493, 4440), (3885, 3992)]