18409888

素因数分解:

$2^5\times 7^2\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:282

約数の個数: 72

約数和(自身を含む): 43092000

約数和(自身を除く): 24682112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 59, 98, 112, 118, 196, 199, 224, 236, 392, 398, 413, 472, 784, 796, 826, 944, 1393, 1568, 1592, 1652, 1888, 2786, 2891, 3184, 3304, 5572, 5782, 6368, 6608, 9751, 11144, 11564, 11741, 13216, 19502, 22288, 23128, 23482, 39004, 44576, 46256, 46964, 78008, 82187, 92512, 93928, 156016, 164374, 187856, 312032, 328748, 375712, 575309, 657496, 1150618, 1314992, 2301236, 2629984, 4602472, 9204944, 18409888]

約数ペア:

[(1, 18409888), (2, 9204944), (4, 4602472), (7, 2629984), (8, 2301236), (14, 1314992), (16, 1150618), (28, 657496), (32, 575309), (49, 375712), (56, 328748), (59, 312032), (98, 187856), (112, 164374), (118, 156016), (196, 93928), (199, 92512), (224, 82187), (236, 78008), (392, 46964), (398, 46256), (413, 44576), (472, 39004), (784, 23482), (796, 23128), (826, 22288), (944, 19502), (1393, 13216), (1568, 11741), (1592, 11564), (1652, 11144), (1888, 9751), (2786, 6608), (2891, 6368), (3184, 5782), (3304, 5572)]