19997232

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:282

約数の個数: 80

約数和(自身を含む): 54282240

約数和(自身を除く): 34285008

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 89, 93, 124, 151, 178, 186, 248, 267, 302, 356, 372, 453, 496, 534, 604, 712, 744, 906, 1068, 1208, 1424, 1488, 1812, 2136, 2416, 2759, 3624, 4272, 4681, 5518, 7248, 8277, 9362, 11036, 13439, 14043, 16554, 18724, 22072, 26878, 28086, 33108, 37448, 40317, 44144, 53756, 56172, 66216, 74896, 80634, 107512, 112344, 132432, 161268, 215024, 224688, 322536, 416609, 645072, 833218, 1249827, 1666436, 2499654, 3332872, 4999308, 6665744, 9998616, 19997232]

約数ペア:

[(1, 19997232), (2, 9998616), (3, 6665744), (4, 4999308), (6, 3332872), (8, 2499654), (12, 1666436), (16, 1249827), (24, 833218), (31, 645072), (48, 416609), (62, 322536), (89, 224688), (93, 215024), (124, 161268), (151, 132432), (178, 112344), (186, 107512), (248, 80634), (267, 74896), (302, 66216), (356, 56172), (372, 53756), (453, 44144), (496, 40317), (534, 37448), (604, 33108), (712, 28086), (744, 26878), (906, 22072), (1068, 18724), (1208, 16554), (1424, 14043), (1488, 13439), (1812, 11036), (2136, 9362), (2416, 8277), (2759, 7248), (3624, 5518), (4272, 4681)]