71681120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:293

約数の個数: 144

約数和(自身を含む): 202704768

約数和(自身を除く): 131023648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 140, 160, 164, 196, 205, 223, 224, 245, 280, 287, 328, 392, 410, 446, 490, 560, 574, 656, 784, 820, 892, 980, 1115, 1120, 1148, 1312, 1435, 1561, 1568, 1640, 1784, 1960, 2009, 2230, 2296, 2870, 3122, 3280, 3568, 3920, 4018, 4460, 4592, 5740, 6244, 6560, 7136, 7805, 7840, 8036, 8920, 9143, 9184, 10045, 10927, 11480, 12488, 15610, 16072, 17840, 18286, 20090, 21854, 22960, 24976, 31220, 32144, 35680, 36572, 40180, 43708, 45715, 45920, 49952, 54635, 62440, 64001, 64288, 73144, 80360, 87416, 91430, 109270, 124880, 128002, 146288, 160720, 174832, 182860, 218540, 249760, 256004, 292576, 320005, 321440, 349664, 365720, 437080, 448007, 512008, 640010, 731440, 874160, 896014, 1024016, 1280020, 1462880, 1748320, 1792028, 2048032, 2240035, 2560040, 3584056, 4480070, 5120080, 7168112, 8960140, 10240160, 14336224, 17920280, 35840560, 71681120]

約数ペア:

[(1, 71681120), (2, 35840560), (4, 17920280), (5, 14336224), (7, 10240160), (8, 8960140), (10, 7168112), (14, 5120080), (16, 4480070), (20, 3584056), (28, 2560040), (32, 2240035), (35, 2048032), (40, 1792028), (41, 1748320), (49, 1462880), (56, 1280020), (70, 1024016), (80, 896014), (82, 874160), (98, 731440), (112, 640010), (140, 512008), (160, 448007), (164, 437080), (196, 365720), (205, 349664), (223, 321440), (224, 320005), (245, 292576), (280, 256004), (287, 249760), (328, 218540), (392, 182860), (410, 174832), (446, 160720), (490, 146288), (560, 128002), (574, 124880), (656, 109270), (784, 91430), (820, 87416), (892, 80360), (980, 73144), (1115, 64288), (1120, 64001), (1148, 62440), (1312, 54635), (1435, 49952), (1561, 45920), (1568, 45715), (1640, 43708), (1784, 40180), (1960, 36572), (2009, 35680), (2230, 32144), (2296, 31220), (2870, 24976), (3122, 22960), (3280, 21854), (3568, 20090), (3920, 18286), (4018, 17840), (4460, 16072), (4592, 15610), (5740, 12488), (6244, 11480), (6560, 10927), (7136, 10045), (7805, 9184), (7840, 9143), (8036, 8920)]