31423240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 74131200

約数和(自身を除く): 42707960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 103, 116, 145, 206, 232, 263, 290, 412, 515, 526, 580, 824, 1030, 1052, 1160, 1315, 2060, 2104, 2630, 2987, 4120, 5260, 5974, 7627, 10520, 11948, 14935, 15254, 23896, 27089, 29870, 30508, 38135, 54178, 59740, 61016, 76270, 108356, 119480, 135445, 152540, 216712, 270890, 305080, 541780, 785581, 1083560, 1571162, 3142324, 3927905, 6284648, 7855810, 15711620, 31423240]

約数ペア:

[(1, 31423240), (2, 15711620), (4, 7855810), (5, 6284648), (8, 3927905), (10, 3142324), (20, 1571162), (29, 1083560), (40, 785581), (58, 541780), (103, 305080), (116, 270890), (145, 216712), (206, 152540), (232, 135445), (263, 119480), (290, 108356), (412, 76270), (515, 61016), (526, 59740), (580, 54178), (824, 38135), (1030, 30508), (1052, 29870), (1160, 27089), (1315, 23896), (2060, 15254), (2104, 14935), (2630, 11948), (2987, 10520), (4120, 7627), (5260, 5974)]