28783188

素因数分解:

$2^2\times 3^4\times 7^4\times {\mathrm{37}}^1$

素因数の和:81

約数の個数: 150

約数和(自身を含む): 90152986

約数和(自身を除く): 61369798

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 49, 54, 63, 74, 81, 84, 98, 108, 111, 126, 147, 148, 162, 189, 196, 222, 252, 259, 294, 324, 333, 343, 378, 441, 444, 518, 567, 588, 666, 686, 756, 777, 882, 999, 1029, 1036, 1134, 1323, 1332, 1372, 1554, 1764, 1813, 1998, 2058, 2268, 2331, 2401, 2646, 2997, 3087, 3108, 3626, 3969, 3996, 4116, 4662, 4802, 5292, 5439, 5994, 6174, 6993, 7203, 7252, 7938, 9261, 9324, 9604, 10878, 11988, 12348, 12691, 13986, 14406, 15876, 16317, 18522, 20979, 21609, 21756, 25382, 27783, 27972, 28812, 32634, 37044, 38073, 41958, 43218, 48951, 50764, 55566, 64827, 65268, 76146, 83916, 86436, 88837, 97902, 111132, 114219, 129654, 146853, 152292, 177674, 194481, 195804, 228438, 259308, 266511, 293706, 342657, 355348, 388962, 456876, 533022, 587412, 685314, 777924, 799533, 1027971, 1066044, 1370628, 1599066, 2055942, 2398599, 3198132, 4111884, 4797198, 7195797, 9594396, 14391594, 28783188]

約数ペア:

[(1, 28783188), (2, 14391594), (3, 9594396), (4, 7195797), (6, 4797198), (7, 4111884), (9, 3198132), (12, 2398599), (14, 2055942), (18, 1599066), (21, 1370628), (27, 1066044), (28, 1027971), (36, 799533), (37, 777924), (42, 685314), (49, 587412), (54, 533022), (63, 456876), (74, 388962), (81, 355348), (84, 342657), (98, 293706), (108, 266511), (111, 259308), (126, 228438), (147, 195804), (148, 194481), (162, 177674), (189, 152292), (196, 146853), (222, 129654), (252, 114219), (259, 111132), (294, 97902), (324, 88837), (333, 86436), (343, 83916), (378, 76146), (441, 65268), (444, 64827), (518, 55566), (567, 50764), (588, 48951), (666, 43218), (686, 41958), (756, 38073), (777, 37044), (882, 32634), (999, 28812), (1029, 27972), (1036, 27783), (1134, 25382), (1323, 21756), (1332, 21609), (1372, 20979), (1554, 18522), (1764, 16317), (1813, 15876), (1998, 14406), (2058, 13986), (2268, 12691), (2331, 12348), (2401, 11988), (2646, 10878), (2997, 9604), (3087, 9324), (3108, 9261), (3626, 7938), (3969, 7252), (3996, 7203), (4116, 6993), (4662, 6174), (4802, 5994), (5292, 5439)]