18135880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:531

約数の個数: 96

約数和(自身を含む): 50068800

約数和(自身を除く): 31932920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 487, 490, 532, 665, 760, 931, 974, 980, 1064, 1330, 1862, 1948, 1960, 2435, 2660, 3409, 3724, 3896, 4655, 4870, 5320, 6818, 7448, 9253, 9310, 9740, 13636, 17045, 18506, 18620, 19480, 23863, 27272, 34090, 37012, 37240, 46265, 47726, 64771, 68180, 74024, 92530, 95452, 119315, 129542, 136360, 185060, 190904, 238630, 259084, 323855, 370120, 453397, 477260, 518168, 647710, 906794, 954520, 1295420, 1813588, 2266985, 2590840, 3627176, 4533970, 9067940, 18135880]

約数ペア:

[(1, 18135880), (2, 9067940), (4, 4533970), (5, 3627176), (7, 2590840), (8, 2266985), (10, 1813588), (14, 1295420), (19, 954520), (20, 906794), (28, 647710), (35, 518168), (38, 477260), (40, 453397), (49, 370120), (56, 323855), (70, 259084), (76, 238630), (95, 190904), (98, 185060), (133, 136360), (140, 129542), (152, 119315), (190, 95452), (196, 92530), (245, 74024), (266, 68180), (280, 64771), (380, 47726), (392, 46265), (487, 37240), (490, 37012), (532, 34090), (665, 27272), (760, 23863), (931, 19480), (974, 18620), (980, 18506), (1064, 17045), (1330, 13636), (1862, 9740), (1948, 9310), (1960, 9253), (2435, 7448), (2660, 6818), (3409, 5320), (3724, 4870), (3896, 4655)]