20172984

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 59270400

約数和(自身を除く): 39097416

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 41, 52, 57, 76, 78, 82, 83, 104, 114, 123, 152, 156, 164, 166, 228, 246, 247, 249, 312, 328, 332, 456, 492, 494, 498, 533, 664, 741, 779, 984, 988, 996, 1066, 1079, 1482, 1558, 1577, 1599, 1976, 1992, 2132, 2158, 2337, 2964, 3116, 3154, 3198, 3237, 3403, 4264, 4316, 4674, 4731, 5928, 6232, 6308, 6396, 6474, 6806, 8632, 9348, 9462, 10127, 10209, 12616, 12792, 12948, 13612, 18696, 18924, 20254, 20418, 20501, 25896, 27224, 30381, 37848, 40508, 40836, 41002, 44239, 60762, 61503, 64657, 81016, 81672, 82004, 88478, 121524, 123006, 129314, 132717, 164008, 176956, 193971, 243048, 246012, 258628, 265434, 353912, 387942, 492024, 517256, 530868, 775884, 840541, 1061736, 1551768, 1681082, 2521623, 3362164, 5043246, 6724328, 10086492, 20172984]

約数ペア:

[(1, 20172984), (2, 10086492), (3, 6724328), (4, 5043246), (6, 3362164), (8, 2521623), (12, 1681082), (13, 1551768), (19, 1061736), (24, 840541), (26, 775884), (38, 530868), (39, 517256), (41, 492024), (52, 387942), (57, 353912), (76, 265434), (78, 258628), (82, 246012), (83, 243048), (104, 193971), (114, 176956), (123, 164008), (152, 132717), (156, 129314), (164, 123006), (166, 121524), (228, 88478), (246, 82004), (247, 81672), (249, 81016), (312, 64657), (328, 61503), (332, 60762), (456, 44239), (492, 41002), (494, 40836), (498, 40508), (533, 37848), (664, 30381), (741, 27224), (779, 25896), (984, 20501), (988, 20418), (996, 20254), (1066, 18924), (1079, 18696), (1482, 13612), (1558, 12948), (1577, 12792), (1599, 12616), (1976, 10209), (1992, 10127), (2132, 9462), (2158, 9348), (2337, 8632), (2964, 6806), (3116, 6474), (3154, 6396), (3198, 6308), (3237, 6232), (3403, 5928), (4264, 4731), (4316, 4674)]