28015956

素因数分解:

$2^2\times 3^5\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 81332160

約数和(自身を除く): 53316204

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 37, 38, 41, 54, 57, 74, 76, 81, 82, 108, 111, 114, 123, 148, 162, 164, 171, 222, 228, 243, 246, 324, 333, 342, 369, 444, 486, 492, 513, 666, 684, 703, 738, 779, 972, 999, 1026, 1107, 1332, 1406, 1476, 1517, 1539, 1558, 1998, 2052, 2109, 2214, 2337, 2812, 2997, 3034, 3078, 3116, 3321, 3996, 4218, 4428, 4551, 4617, 4674, 5994, 6068, 6156, 6327, 6642, 7011, 8436, 8991, 9102, 9234, 9348, 9963, 11988, 12654, 13284, 13653, 14022, 17982, 18204, 18468, 18981, 19926, 21033, 25308, 27306, 28044, 28823, 35964, 37962, 39852, 40959, 42066, 54612, 56943, 57646, 63099, 75924, 81918, 84132, 86469, 113886, 115292, 122877, 126198, 163836, 170829, 172938, 189297, 227772, 245754, 252396, 259407, 341658, 345876, 368631, 378594, 491508, 518814, 683316, 737262, 757188, 778221, 1037628, 1474524, 1556442, 2334663, 3112884, 4669326, 7003989, 9338652, 14007978, 28015956]

約数ペア:

[(1, 28015956), (2, 14007978), (3, 9338652), (4, 7003989), (6, 4669326), (9, 3112884), (12, 2334663), (18, 1556442), (19, 1474524), (27, 1037628), (36, 778221), (37, 757188), (38, 737262), (41, 683316), (54, 518814), (57, 491508), (74, 378594), (76, 368631), (81, 345876), (82, 341658), (108, 259407), (111, 252396), (114, 245754), (123, 227772), (148, 189297), (162, 172938), (164, 170829), (171, 163836), (222, 126198), (228, 122877), (243, 115292), (246, 113886), (324, 86469), (333, 84132), (342, 81918), (369, 75924), (444, 63099), (486, 57646), (492, 56943), (513, 54612), (666, 42066), (684, 40959), (703, 39852), (738, 37962), (779, 35964), (972, 28823), (999, 28044), (1026, 27306), (1107, 25308), (1332, 21033), (1406, 19926), (1476, 18981), (1517, 18468), (1539, 18204), (1558, 17982), (1998, 14022), (2052, 13653), (2109, 13284), (2214, 12654), (2337, 11988), (2812, 9963), (2997, 9348), (3034, 9234), (3078, 9102), (3116, 8991), (3321, 8436), (3996, 7011), (4218, 6642), (4428, 6327), (4551, 6156), (4617, 6068), (4674, 5994)]