23257480

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 31174520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 89, 94, 139, 178, 188, 235, 278, 356, 376, 445, 470, 556, 695, 712, 890, 940, 1112, 1390, 1780, 1880, 2780, 3560, 4183, 5560, 6533, 8366, 12371, 13066, 16732, 20915, 24742, 26132, 32665, 33464, 41830, 49484, 52264, 61855, 65330, 83660, 98968, 123710, 130660, 167320, 247420, 261320, 494840, 581437, 1162874, 2325748, 2907185, 4651496, 5814370, 11628740, 23257480]

約数ペア:

[(1, 23257480), (2, 11628740), (4, 5814370), (5, 4651496), (8, 2907185), (10, 2325748), (20, 1162874), (40, 581437), (47, 494840), (89, 261320), (94, 247420), (139, 167320), (178, 130660), (188, 123710), (235, 98968), (278, 83660), (356, 65330), (376, 61855), (445, 52264), (470, 49484), (556, 41830), (695, 33464), (712, 32665), (890, 26132), (940, 24742), (1112, 20915), (1390, 16732), (1780, 13066), (1880, 12371), (2780, 8366), (3560, 6533), (4183, 5560)]