28067520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1$

素因数の和:219

約数の個数: 168

約数和(自身を含む): 97054416

約数和(自身を除く): 68986896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 173, 192, 195, 208, 240, 260, 312, 320, 338, 346, 390, 416, 480, 507, 519, 520, 624, 676, 692, 780, 832, 845, 865, 960, 1014, 1038, 1040, 1248, 1352, 1384, 1560, 1690, 1730, 2028, 2076, 2080, 2249, 2496, 2535, 2595, 2704, 2768, 3120, 3380, 3460, 4056, 4152, 4160, 4498, 5070, 5190, 5408, 5536, 6240, 6747, 6760, 6920, 8112, 8304, 8996, 10140, 10380, 10816, 11072, 11245, 12480, 13494, 13520, 13840, 16224, 16608, 17992, 20280, 20760, 22490, 26988, 27040, 27680, 29237, 32448, 33216, 33735, 35984, 40560, 41520, 44980, 53976, 54080, 55360, 58474, 67470, 71968, 81120, 83040, 87711, 89960, 107952, 116948, 134940, 143936, 146185, 162240, 166080, 175422, 179920, 215904, 233896, 269880, 292370, 350844, 359840, 431808, 438555, 467792, 539760, 584740, 701688, 719680, 877110, 935584, 1079520, 1169480, 1403376, 1754220, 1871168, 2159040, 2338960, 2806752, 3508440, 4677920, 5613504, 7016880, 9355840, 14033760, 28067520]

約数ペア:

[(1, 28067520), (2, 14033760), (3, 9355840), (4, 7016880), (5, 5613504), (6, 4677920), (8, 3508440), (10, 2806752), (12, 2338960), (13, 2159040), (15, 1871168), (16, 1754220), (20, 1403376), (24, 1169480), (26, 1079520), (30, 935584), (32, 877110), (39, 719680), (40, 701688), (48, 584740), (52, 539760), (60, 467792), (64, 438555), (65, 431808), (78, 359840), (80, 350844), (96, 292370), (104, 269880), (120, 233896), (130, 215904), (156, 179920), (160, 175422), (169, 166080), (173, 162240), (192, 146185), (195, 143936), (208, 134940), (240, 116948), (260, 107952), (312, 89960), (320, 87711), (338, 83040), (346, 81120), (390, 71968), (416, 67470), (480, 58474), (507, 55360), (519, 54080), (520, 53976), (624, 44980), (676, 41520), (692, 40560), (780, 35984), (832, 33735), (845, 33216), (865, 32448), (960, 29237), (1014, 27680), (1038, 27040), (1040, 26988), (1248, 22490), (1352, 20760), (1384, 20280), (1560, 17992), (1690, 16608), (1730, 16224), (2028, 13840), (2076, 13520), (2080, 13494), (2249, 12480), (2496, 11245), (2535, 11072), (2595, 10816), (2704, 10380), (2768, 10140), (3120, 8996), (3380, 8304), (3460, 8112), (4056, 6920), (4152, 6760), (4160, 6747), (4498, 6240), (5070, 5536), (5190, 5408)]