205285120

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:430

約数の個数: 144

約数和(自身を含む): 541578240

約数和(自身を除く): 336293120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 128, 152, 160, 184, 190, 230, 256, 304, 320, 367, 368, 380, 437, 460, 608, 640, 734, 736, 760, 874, 920, 1216, 1280, 1468, 1472, 1520, 1748, 1835, 1840, 2185, 2432, 2936, 2944, 3040, 3496, 3670, 3680, 4370, 4864, 5872, 5888, 6080, 6973, 6992, 7340, 7360, 8441, 8740, 11744, 12160, 13946, 13984, 14680, 14720, 16882, 17480, 23488, 24320, 27892, 27968, 29360, 29440, 33764, 34865, 34960, 42205, 46976, 55784, 55936, 58720, 67528, 69730, 69920, 84410, 93952, 111568, 111872, 117440, 135056, 139460, 139840, 160379, 168820, 223136, 234880, 270112, 278920, 279680, 320758, 337640, 446272, 469760, 540224, 557840, 559360, 641516, 675280, 801895, 892544, 1080448, 1115680, 1283032, 1350560, 1603790, 1785088, 2160896, 2231360, 2566064, 2701120, 3207580, 4462720, 5132128, 5402240, 6415160, 8925440, 10264256, 10804480, 12830320, 20528512, 25660640, 41057024, 51321280, 102642560, 205285120]

約数ペア:

[(1, 205285120), (2, 102642560), (4, 51321280), (5, 41057024), (8, 25660640), (10, 20528512), (16, 12830320), (19, 10804480), (20, 10264256), (23, 8925440), (32, 6415160), (38, 5402240), (40, 5132128), (46, 4462720), (64, 3207580), (76, 2701120), (80, 2566064), (92, 2231360), (95, 2160896), (115, 1785088), (128, 1603790), (152, 1350560), (160, 1283032), (184, 1115680), (190, 1080448), (230, 892544), (256, 801895), (304, 675280), (320, 641516), (367, 559360), (368, 557840), (380, 540224), (437, 469760), (460, 446272), (608, 337640), (640, 320758), (734, 279680), (736, 278920), (760, 270112), (874, 234880), (920, 223136), (1216, 168820), (1280, 160379), (1468, 139840), (1472, 139460), (1520, 135056), (1748, 117440), (1835, 111872), (1840, 111568), (2185, 93952), (2432, 84410), (2936, 69920), (2944, 69730), (3040, 67528), (3496, 58720), (3670, 55936), (3680, 55784), (4370, 46976), (4864, 42205), (5872, 34960), (5888, 34865), (6080, 33764), (6973, 29440), (6992, 29360), (7340, 27968), (7360, 27892), (8441, 24320), (8740, 23488), (11744, 17480), (12160, 16882), (13946, 14720), (13984, 14680)]