77997920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:533

約数の個数: 192

約数和(自身を含む): 247919616

約数和(自身を除く): 169921696

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 160, 176, 182, 208, 220, 224, 260, 280, 286, 308, 352, 364, 385, 416, 440, 455, 487, 520, 560, 572, 616, 715, 728, 770, 880, 910, 974, 1001, 1040, 1120, 1144, 1232, 1430, 1456, 1540, 1760, 1820, 1948, 2002, 2080, 2288, 2435, 2464, 2860, 2912, 3080, 3409, 3640, 3896, 4004, 4576, 4870, 5005, 5357, 5720, 6160, 6331, 6818, 7280, 7792, 8008, 9740, 10010, 10714, 11440, 12320, 12662, 13636, 14560, 15584, 16016, 17045, 19480, 20020, 21428, 22880, 25324, 26785, 27272, 31655, 32032, 34090, 37499, 38960, 40040, 42856, 44317, 50648, 53570, 54544, 63310, 68180, 69641, 74998, 77920, 80080, 85712, 88634, 101296, 107140, 109088, 126620, 136360, 139282, 149996, 160160, 171424, 177268, 187495, 202592, 214280, 221585, 253240, 272720, 278564, 299992, 348205, 354536, 374990, 428560, 443170, 487487, 506480, 545440, 557128, 599984, 696410, 709072, 749980, 857120, 886340, 974974, 1012960, 1114256, 1199968, 1392820, 1418144, 1499960, 1772680, 1949948, 2228512, 2437435, 2785640, 2999920, 3545360, 3899896, 4874870, 5571280, 5999840, 7090720, 7799792, 9749740, 11142560, 15599584, 19499480, 38998960, 77997920]

約数ペア:

[(1, 77997920), (2, 38998960), (4, 19499480), (5, 15599584), (7, 11142560), (8, 9749740), (10, 7799792), (11, 7090720), (13, 5999840), (14, 5571280), (16, 4874870), (20, 3899896), (22, 3545360), (26, 2999920), (28, 2785640), (32, 2437435), (35, 2228512), (40, 1949948), (44, 1772680), (52, 1499960), (55, 1418144), (56, 1392820), (65, 1199968), (70, 1114256), (77, 1012960), (80, 974974), (88, 886340), (91, 857120), (104, 749980), (110, 709072), (112, 696410), (130, 599984), (140, 557128), (143, 545440), (154, 506480), (160, 487487), (176, 443170), (182, 428560), (208, 374990), (220, 354536), (224, 348205), (260, 299992), (280, 278564), (286, 272720), (308, 253240), (352, 221585), (364, 214280), (385, 202592), (416, 187495), (440, 177268), (455, 171424), (487, 160160), (520, 149996), (560, 139282), (572, 136360), (616, 126620), (715, 109088), (728, 107140), (770, 101296), (880, 88634), (910, 85712), (974, 80080), (1001, 77920), (1040, 74998), (1120, 69641), (1144, 68180), (1232, 63310), (1430, 54544), (1456, 53570), (1540, 50648), (1760, 44317), (1820, 42856), (1948, 40040), (2002, 38960), (2080, 37499), (2288, 34090), (2435, 32032), (2464, 31655), (2860, 27272), (2912, 26785), (3080, 25324), (3409, 22880), (3640, 21428), (3896, 20020), (4004, 19480), (4576, 17045), (4870, 16016), (5005, 15584), (5357, 14560), (5720, 13636), (6160, 12662), (6331, 12320), (6818, 11440), (7280, 10714), (7792, 10010), (8008, 9740)]