18165280

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{331}}^1$

素因数の和:367

約数の個数: 96

約数和(自身を含む): 50198400

約数和(自身を除く): 32033120

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, 331, 343, 392, 490, 560, 662, 686, 784, 980, 1120, 1324, 1372, 1568, 1655, 1715, 1960, 2317, 2648, 2744, 3310, 3430, 3920, 4634, 5296, 5488, 6620, 6860, 7840, 9268, 10592, 10976, 11585, 13240, 13720, 16219, 18536, 23170, 26480, 27440, 32438, 37072, 46340, 52960, 54880, 64876, 74144, 81095, 92680, 113533, 129752, 162190, 185360, 227066, 259504, 324380, 370720, 454132, 519008, 567665, 648760, 908264, 1135330, 1297520, 1816528, 2270660, 2595040, 3633056, 4541320, 9082640, 18165280]

約数ペア:

[(1, 18165280), (2, 9082640), (4, 4541320), (5, 3633056), (7, 2595040), (8, 2270660), (10, 1816528), (14, 1297520), (16, 1135330), (20, 908264), (28, 648760), (32, 567665), (35, 519008), (40, 454132), (49, 370720), (56, 324380), (70, 259504), (80, 227066), (98, 185360), (112, 162190), (140, 129752), (160, 113533), (196, 92680), (224, 81095), (245, 74144), (280, 64876), (331, 54880), (343, 52960), (392, 46340), (490, 37072), (560, 32438), (662, 27440), (686, 26480), (784, 23170), (980, 18536), (1120, 16219), (1324, 13720), (1372, 13240), (1568, 11585), (1655, 10976), (1715, 10592), (1960, 9268), (2317, 7840), (2648, 6860), (2744, 6620), (3310, 5488), (3430, 5296), (3920, 4634)]