84820280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 197648640

約数和(自身を除く): 112828360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 223, 257, 296, 370, 446, 514, 740, 892, 1028, 1115, 1285, 1480, 1784, 2056, 2230, 2570, 4460, 5140, 8251, 8920, 9509, 10280, 16502, 19018, 33004, 38036, 41255, 47545, 57311, 66008, 76072, 82510, 95090, 114622, 165020, 190180, 229244, 286555, 330040, 380360, 458488, 573110, 1146220, 2120507, 2292440, 4241014, 8482028, 10602535, 16964056, 21205070, 42410140, 84820280]

約数ペア:

[(1, 84820280), (2, 42410140), (4, 21205070), (5, 16964056), (8, 10602535), (10, 8482028), (20, 4241014), (37, 2292440), (40, 2120507), (74, 1146220), (148, 573110), (185, 458488), (223, 380360), (257, 330040), (296, 286555), (370, 229244), (446, 190180), (514, 165020), (740, 114622), (892, 95090), (1028, 82510), (1115, 76072), (1285, 66008), (1480, 57311), (1784, 47545), (2056, 41255), (2230, 38036), (2570, 33004), (4460, 19018), (5140, 16502), (8251, 10280), (8920, 9509)]