20671797608

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1\times {\mathrm{1499}}^1$

素因数の和:1951

約数の個数: 128

約数和(自身を含む): 49282560000

約数和(自身を除く): 28610762392

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 61, 77, 88, 122, 154, 244, 308, 367, 427, 488, 616, 671, 734, 854, 1342, 1468, 1499, 1708, 2569, 2684, 2936, 2998, 3416, 4037, 4697, 5138, 5368, 5996, 8074, 9394, 10276, 10493, 11992, 16148, 16489, 18788, 20552, 20986, 22387, 28259, 32296, 32978, 37576, 41972, 44774, 56518, 65956, 83944, 89548, 91439, 113036, 115423, 131912, 156709, 179096, 182878, 226072, 230846, 246257, 313418, 365756, 461692, 492514, 550133, 626836, 640073, 731512, 923384, 985028, 1005829, 1100266, 1253672, 1280146, 1723799, 1970056, 2011658, 2200532, 2560292, 3447598, 3850931, 4023316, 4401064, 5120584, 6051463, 6895196, 7040803, 7701862, 8046632, 12102926, 13790392, 14081606, 15403724, 24205852, 28163212, 30807448, 33558113, 42360241, 48411704, 56326424, 67116226, 84720482, 134232452, 169440964, 234906791, 268464904, 338881928, 369139243, 469813582, 738278486, 939627164, 1476556972, 1879254328, 2583974701, 2953113944, 5167949402, 10335898804, 20671797608]

約数ペア:

[(1, 20671797608), (2, 10335898804), (4, 5167949402), (7, 2953113944), (8, 2583974701), (11, 1879254328), (14, 1476556972), (22, 939627164), (28, 738278486), (44, 469813582), (56, 369139243), (61, 338881928), (77, 268464904), (88, 234906791), (122, 169440964), (154, 134232452), (244, 84720482), (308, 67116226), (367, 56326424), (427, 48411704), (488, 42360241), (616, 33558113), (671, 30807448), (734, 28163212), (854, 24205852), (1342, 15403724), (1468, 14081606), (1499, 13790392), (1708, 12102926), (2569, 8046632), (2684, 7701862), (2936, 7040803), (2998, 6895196), (3416, 6051463), (4037, 5120584), (4697, 4401064), (5138, 4023316), (5368, 3850931), (5996, 3447598), (8074, 2560292), (9394, 2200532), (10276, 2011658), (10493, 1970056), (11992, 1723799), (16148, 1280146), (16489, 1253672), (18788, 1100266), (20552, 1005829), (20986, 985028), (22387, 923384), (28259, 731512), (32296, 640073), (32978, 626836), (37576, 550133), (41972, 492514), (44774, 461692), (56518, 365756), (65956, 313418), (83944, 246257), (89548, 230846), (91439, 226072), (113036, 182878), (115423, 179096), (131912, 156709)]