18515808

素因数分解:

$2^5\times 3^2\times {\mathrm{239}}^1\times {\mathrm{269}}^1$

素因数の和:524

約数の個数: 72

約数和(自身を含む): 53071200

約数和(自身を除く): 34555392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 239, 269, 288, 478, 538, 717, 807, 956, 1076, 1434, 1614, 1912, 2151, 2152, 2421, 2868, 3228, 3824, 4302, 4304, 4842, 5736, 6456, 7648, 8604, 8608, 9684, 11472, 12912, 17208, 19368, 22944, 25824, 34416, 38736, 64291, 68832, 77472, 128582, 192873, 257164, 385746, 514328, 578619, 771492, 1028656, 1157238, 1542984, 2057312, 2314476, 3085968, 4628952, 6171936, 9257904, 18515808]

約数ペア:

[(1, 18515808), (2, 9257904), (3, 6171936), (4, 4628952), (6, 3085968), (8, 2314476), (9, 2057312), (12, 1542984), (16, 1157238), (18, 1028656), (24, 771492), (32, 578619), (36, 514328), (48, 385746), (72, 257164), (96, 192873), (144, 128582), (239, 77472), (269, 68832), (288, 64291), (478, 38736), (538, 34416), (717, 25824), (807, 22944), (956, 19368), (1076, 17208), (1434, 12912), (1614, 11472), (1912, 9684), (2151, 8608), (2152, 8604), (2421, 7648), (2868, 6456), (3228, 5736), (3824, 4842), (4302, 4304)]