81206490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 201916800

約数和(自身を除く): 120710310

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 149, 185, 222, 298, 370, 447, 491, 555, 745, 894, 982, 1110, 1473, 1490, 2235, 2455, 2946, 4470, 4910, 5513, 7365, 11026, 14730, 16539, 18167, 27565, 33078, 36334, 54501, 55130, 73159, 82695, 90835, 109002, 146318, 165390, 181670, 219477, 272505, 365795, 438954, 545010, 731590, 1097385, 2194770, 2706883, 5413766, 8120649, 13534415, 16241298, 27068830, 40603245, 81206490]

約数ペア:

[(1, 81206490), (2, 40603245), (3, 27068830), (5, 16241298), (6, 13534415), (10, 8120649), (15, 5413766), (30, 2706883), (37, 2194770), (74, 1097385), (111, 731590), (149, 545010), (185, 438954), (222, 365795), (298, 272505), (370, 219477), (447, 181670), (491, 165390), (555, 146318), (745, 109002), (894, 90835), (982, 82695), (1110, 73159), (1473, 55130), (1490, 54501), (2235, 36334), (2455, 33078), (2946, 27565), (4470, 18167), (4910, 16539), (5513, 14730), (7365, 11026)]