51997920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:685

約数の個数: 144

約数和(自身を含む): 177638832

約数和(自身を除く): 125640912

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, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 208, 240, 260, 312, 338, 390, 416, 480, 507, 520, 624, 641, 676, 780, 845, 1014, 1040, 1248, 1282, 1352, 1560, 1690, 1923, 2028, 2080, 2535, 2564, 2704, 3120, 3205, 3380, 3846, 4056, 5070, 5128, 5408, 6240, 6410, 6760, 7692, 8112, 8333, 9615, 10140, 10256, 12820, 13520, 15384, 16224, 16666, 19230, 20280, 20512, 24999, 25640, 27040, 30768, 33332, 38460, 40560, 41665, 49998, 51280, 61536, 66664, 76920, 81120, 83330, 99996, 102560, 108329, 124995, 133328, 153840, 166660, 199992, 216658, 249990, 266656, 307680, 324987, 333320, 399984, 433316, 499980, 541645, 649974, 666640, 799968, 866632, 999960, 1083290, 1299948, 1333280, 1624935, 1733264, 1999920, 2166580, 2599896, 3249870, 3466528, 3999840, 4333160, 5199792, 6499740, 8666320, 10399584, 12999480, 17332640, 25998960, 51997920]

約数ペア:

[(1, 51997920), (2, 25998960), (3, 17332640), (4, 12999480), (5, 10399584), (6, 8666320), (8, 6499740), (10, 5199792), (12, 4333160), (13, 3999840), (15, 3466528), (16, 3249870), (20, 2599896), (24, 2166580), (26, 1999920), (30, 1733264), (32, 1624935), (39, 1333280), (40, 1299948), (48, 1083290), (52, 999960), (60, 866632), (65, 799968), (78, 666640), (80, 649974), (96, 541645), (104, 499980), (120, 433316), (130, 399984), (156, 333320), (160, 324987), (169, 307680), (195, 266656), (208, 249990), (240, 216658), (260, 199992), (312, 166660), (338, 153840), (390, 133328), (416, 124995), (480, 108329), (507, 102560), (520, 99996), (624, 83330), (641, 81120), (676, 76920), (780, 66664), (845, 61536), (1014, 51280), (1040, 49998), (1248, 41665), (1282, 40560), (1352, 38460), (1560, 33332), (1690, 30768), (1923, 27040), (2028, 25640), (2080, 24999), (2535, 20512), (2564, 20280), (2704, 19230), (3120, 16666), (3205, 16224), (3380, 15384), (3846, 13520), (4056, 12820), (5070, 10256), (5128, 10140), (5408, 9615), (6240, 8333), (6410, 8112), (6760, 7692)]