161104160

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{20549}}^1$

素因数の和:20578

約数の個数: 72

約数和(自身を含む): 442770300

約数和(自身を除く): 281666140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 20549, 41098, 82196, 102745, 143843, 164392, 205490, 287686, 328784, 410980, 575372, 657568, 719215, 821960, 1006901, 1150744, 1438430, 1643920, 2013802, 2301488, 2876860, 3287840, 4027604, 4602976, 5034505, 5753720, 8055208, 10069010, 11507440, 16110416, 20138020, 23014880, 32220832, 40276040, 80552080, 161104160]

約数ペア:

[(1, 161104160), (2, 80552080), (4, 40276040), (5, 32220832), (7, 23014880), (8, 20138020), (10, 16110416), (14, 11507440), (16, 10069010), (20, 8055208), (28, 5753720), (32, 5034505), (35, 4602976), (40, 4027604), (49, 3287840), (56, 2876860), (70, 2301488), (80, 2013802), (98, 1643920), (112, 1438430), (140, 1150744), (160, 1006901), (196, 821960), (224, 719215), (245, 657568), (280, 575372), (392, 410980), (490, 328784), (560, 287686), (784, 205490), (980, 164392), (1120, 143843), (1568, 102745), (1960, 82196), (3920, 41098), (7840, 20549)]