28512180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 92461824

約数和(自身を除く): 63949644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 71, 90, 92, 97, 115, 138, 142, 180, 194, 207, 213, 230, 276, 284, 291, 345, 355, 388, 414, 426, 460, 485, 582, 639, 690, 710, 828, 852, 873, 970, 1035, 1065, 1164, 1278, 1380, 1420, 1455, 1633, 1746, 1940, 2070, 2130, 2231, 2556, 2910, 3195, 3266, 3492, 4140, 4260, 4365, 4462, 4899, 5820, 6390, 6532, 6693, 6887, 8165, 8730, 8924, 9798, 11155, 12780, 13386, 13774, 14697, 16330, 17460, 19596, 20079, 20661, 22310, 24495, 26772, 27548, 29394, 32660, 33465, 34435, 40158, 41322, 44620, 48990, 58788, 61983, 66930, 68870, 73485, 80316, 82644, 97980, 100395, 103305, 123966, 133860, 137740, 146970, 158401, 200790, 206610, 247932, 293940, 309915, 316802, 401580, 413220, 475203, 619830, 633604, 792005, 950406, 1239660, 1425609, 1584010, 1900812, 2376015, 2851218, 3168020, 4752030, 5702436, 7128045, 9504060, 14256090, 28512180]

約数ペア:

[(1, 28512180), (2, 14256090), (3, 9504060), (4, 7128045), (5, 5702436), (6, 4752030), (9, 3168020), (10, 2851218), (12, 2376015), (15, 1900812), (18, 1584010), (20, 1425609), (23, 1239660), (30, 950406), (36, 792005), (45, 633604), (46, 619830), (60, 475203), (69, 413220), (71, 401580), (90, 316802), (92, 309915), (97, 293940), (115, 247932), (138, 206610), (142, 200790), (180, 158401), (194, 146970), (207, 137740), (213, 133860), (230, 123966), (276, 103305), (284, 100395), (291, 97980), (345, 82644), (355, 80316), (388, 73485), (414, 68870), (426, 66930), (460, 61983), (485, 58788), (582, 48990), (639, 44620), (690, 41322), (710, 40158), (828, 34435), (852, 33465), (873, 32660), (970, 29394), (1035, 27548), (1065, 26772), (1164, 24495), (1278, 22310), (1380, 20661), (1420, 20079), (1455, 19596), (1633, 17460), (1746, 16330), (1940, 14697), (2070, 13774), (2130, 13386), (2231, 12780), (2556, 11155), (2910, 9798), (3195, 8924), (3266, 8730), (3492, 8165), (4140, 6887), (4260, 6693), (4365, 6532), (4462, 6390), (4899, 5820)]