18093740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 45486000

約数和(自身を除く): 27392260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 499, 518, 740, 980, 998, 1036, 1295, 1813, 1996, 2495, 2590, 3493, 3626, 4990, 5180, 6986, 7252, 9065, 9980, 13972, 17465, 18130, 18463, 24451, 34930, 36260, 36926, 48902, 69860, 73852, 92315, 97804, 122255, 129241, 184630, 244510, 258482, 369260, 489020, 516964, 646205, 904687, 1292410, 1809374, 2584820, 3618748, 4523435, 9046870, 18093740]

約数ペア:

[(1, 18093740), (2, 9046870), (4, 4523435), (5, 3618748), (7, 2584820), (10, 1809374), (14, 1292410), (20, 904687), (28, 646205), (35, 516964), (37, 489020), (49, 369260), (70, 258482), (74, 244510), (98, 184630), (140, 129241), (148, 122255), (185, 97804), (196, 92315), (245, 73852), (259, 69860), (370, 48902), (490, 36926), (499, 36260), (518, 34930), (740, 24451), (980, 18463), (998, 18130), (1036, 17465), (1295, 13972), (1813, 9980), (1996, 9065), (2495, 7252), (2590, 6986), (3493, 5180), (3626, 4990)]