28270480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2657}}^1$

素因数の和:2696

約数の個数: 80

約数和(自身を含む): 79102080

約数和(自身を除く): 50831600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2657, 2660, 5314, 5320, 10628, 10640, 13285, 18599, 21256, 26570, 37198, 42512, 50483, 53140, 74396, 92995, 100966, 106280, 148792, 185990, 201932, 212560, 252415, 297584, 353381, 371980, 403864, 504830, 706762, 743960, 807728, 1009660, 1413524, 1487920, 1766905, 2019320, 2827048, 3533810, 4038640, 5654096, 7067620, 14135240, 28270480]

約数ペア:

[(1, 28270480), (2, 14135240), (4, 7067620), (5, 5654096), (7, 4038640), (8, 3533810), (10, 2827048), (14, 2019320), (16, 1766905), (19, 1487920), (20, 1413524), (28, 1009660), (35, 807728), (38, 743960), (40, 706762), (56, 504830), (70, 403864), (76, 371980), (80, 353381), (95, 297584), (112, 252415), (133, 212560), (140, 201932), (152, 185990), (190, 148792), (266, 106280), (280, 100966), (304, 92995), (380, 74396), (532, 53140), (560, 50483), (665, 42512), (760, 37198), (1064, 26570), (1330, 21256), (1520, 18599), (2128, 13285), (2657, 10640), (2660, 10628), (5314, 5320)]