128285872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:291

約数の個数: 120

約数和(自身を含む): 310426560

約数和(自身を除く): 182140688

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 169, 176, 208, 209, 227, 247, 286, 304, 338, 418, 454, 494, 572, 676, 836, 908, 988, 1144, 1352, 1672, 1816, 1859, 1976, 2288, 2497, 2704, 2717, 2951, 3211, 3344, 3632, 3718, 3952, 4313, 4994, 5434, 5902, 6422, 7436, 8626, 9988, 10868, 11804, 12844, 14872, 17252, 19976, 21736, 23608, 25688, 29744, 32461, 34504, 35321, 38363, 39952, 43472, 47216, 47443, 51376, 56069, 64922, 69008, 70642, 76726, 94886, 112138, 129844, 141284, 153452, 189772, 224276, 259688, 282568, 306904, 379544, 421993, 448552, 519376, 565136, 613808, 616759, 728897, 759088, 843986, 897104, 1233518, 1457794, 1687972, 2467036, 2915588, 3375944, 4934072, 5831176, 6751888, 8017867, 9868144, 11662352, 16035734, 32071468, 64142936, 128285872]

約数ペア:

[(1, 128285872), (2, 64142936), (4, 32071468), (8, 16035734), (11, 11662352), (13, 9868144), (16, 8017867), (19, 6751888), (22, 5831176), (26, 4934072), (38, 3375944), (44, 2915588), (52, 2467036), (76, 1687972), (88, 1457794), (104, 1233518), (143, 897104), (152, 843986), (169, 759088), (176, 728897), (208, 616759), (209, 613808), (227, 565136), (247, 519376), (286, 448552), (304, 421993), (338, 379544), (418, 306904), (454, 282568), (494, 259688), (572, 224276), (676, 189772), (836, 153452), (908, 141284), (988, 129844), (1144, 112138), (1352, 94886), (1672, 76726), (1816, 70642), (1859, 69008), (1976, 64922), (2288, 56069), (2497, 51376), (2704, 47443), (2717, 47216), (2951, 43472), (3211, 39952), (3344, 38363), (3632, 35321), (3718, 34504), (3952, 32461), (4313, 29744), (4994, 25688), (5434, 23608), (5902, 21736), (6422, 19976), (7436, 17252), (8626, 14872), (9988, 12844), (10868, 11804)]