81933904

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:384

約数の個数: 60

約数和(自身を含む): 173888796

約数和(自身を除く): 91954892

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 157, 169, 193, 208, 314, 338, 386, 628, 676, 772, 1256, 1352, 1544, 2041, 2509, 2512, 2704, 3088, 4082, 5018, 8164, 10036, 16328, 20072, 26533, 30301, 32617, 32656, 40144, 53066, 60602, 65234, 106132, 121204, 130468, 212264, 242408, 260936, 393913, 424528, 484816, 521872, 787826, 1575652, 3151304, 5120869, 6302608, 10241738, 20483476, 40966952, 81933904]

約数ペア:

[(1, 81933904), (2, 40966952), (4, 20483476), (8, 10241738), (13, 6302608), (16, 5120869), (26, 3151304), (52, 1575652), (104, 787826), (157, 521872), (169, 484816), (193, 424528), (208, 393913), (314, 260936), (338, 242408), (386, 212264), (628, 130468), (676, 121204), (772, 106132), (1256, 65234), (1352, 60602), (1544, 53066), (2041, 40144), (2509, 32656), (2512, 32617), (2704, 30301), (3088, 26533), (4082, 20072), (5018, 16328), (8164, 10036)]