161590240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{20611}}^1$

素因数の和:20640

約数の個数: 72

約数和(自身を含む): 444106152

約数和(自身を除く): 282515912

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, 20611, 41222, 82444, 103055, 144277, 164888, 206110, 288554, 329776, 412220, 577108, 659552, 721385, 824440, 1009939, 1154216, 1442770, 1648880, 2019878, 2308432, 2885540, 3297760, 4039756, 4616864, 5049695, 5771080, 8079512, 10099390, 11542160, 16159024, 20198780, 23084320, 32318048, 40397560, 80795120, 161590240]

約数ペア:

[(1, 161590240), (2, 80795120), (4, 40397560), (5, 32318048), (7, 23084320), (8, 20198780), (10, 16159024), (14, 11542160), (16, 10099390), (20, 8079512), (28, 5771080), (32, 5049695), (35, 4616864), (40, 4039756), (49, 3297760), (56, 2885540), (70, 2308432), (80, 2019878), (98, 1648880), (112, 1442770), (140, 1154216), (160, 1009939), (196, 824440), (224, 721385), (245, 659552), (280, 577108), (392, 412220), (490, 329776), (560, 288554), (784, 206110), (980, 164888), (1120, 144277), (1568, 103055), (1960, 82444), (3920, 41222), (7840, 20611)]