81004432

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{419}}^1$

素因数の和:751

約数の個数: 40

約数和(自身を含む): 161552160

約数和(自身を除く): 80547728

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 281, 344, 419, 562, 688, 838, 1124, 1676, 2248, 3352, 4496, 6704, 12083, 18017, 24166, 36034, 48332, 72068, 96664, 117739, 144136, 193328, 235478, 288272, 470956, 941912, 1883824, 5062777, 10125554, 20251108, 40502216, 81004432]

約数ペア:

[(1, 81004432), (2, 40502216), (4, 20251108), (8, 10125554), (16, 5062777), (43, 1883824), (86, 941912), (172, 470956), (281, 288272), (344, 235478), (419, 193328), (562, 144136), (688, 117739), (838, 96664), (1124, 72068), (1676, 48332), (2248, 36034), (3352, 24166), (4496, 18017), (6704, 12083)]