84878560

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 144

約数和(自身を含む): 225230544

約数和(自身を除く): 140351984

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 65, 73, 80, 86, 104, 130, 146, 160, 169, 172, 208, 215, 260, 292, 338, 344, 365, 416, 430, 520, 559, 584, 676, 688, 730, 845, 860, 949, 1040, 1118, 1168, 1352, 1376, 1460, 1690, 1720, 1898, 2080, 2236, 2336, 2704, 2795, 2920, 3139, 3380, 3440, 3796, 4472, 4745, 5408, 5590, 5840, 6278, 6760, 6880, 7267, 7592, 8944, 9490, 11180, 11680, 12337, 12556, 13520, 14534, 15184, 15695, 17888, 18980, 22360, 24674, 25112, 27040, 29068, 30368, 31390, 36335, 37960, 40807, 44720, 49348, 50224, 58136, 61685, 62780, 72670, 75920, 81614, 89440, 98696, 100448, 116272, 123370, 125560, 145340, 151840, 163228, 197392, 204035, 232544, 246740, 251120, 290680, 326456, 394784, 408070, 493480, 502240, 530491, 581360, 652912, 816140, 986960, 1060982, 1162720, 1305824, 1632280, 1973920, 2121964, 2652455, 3264560, 4243928, 5304910, 6529120, 8487856, 10609820, 16975712, 21219640, 42439280, 84878560]

約数ペア:

[(1, 84878560), (2, 42439280), (4, 21219640), (5, 16975712), (8, 10609820), (10, 8487856), (13, 6529120), (16, 5304910), (20, 4243928), (26, 3264560), (32, 2652455), (40, 2121964), (43, 1973920), (52, 1632280), (65, 1305824), (73, 1162720), (80, 1060982), (86, 986960), (104, 816140), (130, 652912), (146, 581360), (160, 530491), (169, 502240), (172, 493480), (208, 408070), (215, 394784), (260, 326456), (292, 290680), (338, 251120), (344, 246740), (365, 232544), (416, 204035), (430, 197392), (520, 163228), (559, 151840), (584, 145340), (676, 125560), (688, 123370), (730, 116272), (845, 100448), (860, 98696), (949, 89440), (1040, 81614), (1118, 75920), (1168, 72670), (1352, 62780), (1376, 61685), (1460, 58136), (1690, 50224), (1720, 49348), (1898, 44720), (2080, 40807), (2236, 37960), (2336, 36335), (2704, 31390), (2795, 30368), (2920, 29068), (3139, 27040), (3380, 25112), (3440, 24674), (3796, 22360), (4472, 18980), (4745, 17888), (5408, 15695), (5590, 15184), (5840, 14534), (6278, 13520), (6760, 12556), (6880, 12337), (7267, 11680), (7592, 11180), (8944, 9490)]