20153845984

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{2029}}^1$

素因数の和:2137

約数の個数: 144

約数和(自身を含む): 45718117200

約数和(自身を除く): 25564271216

約数列:

[1, 2, 4, 8, 16, 17, 19, 31, 32, 34, 38, 62, 68, 76, 124, 136, 152, 248, 272, 304, 323, 496, 527, 544, 589, 608, 646, 961, 992, 1054, 1178, 1292, 1922, 2029, 2108, 2356, 2584, 3844, 4058, 4216, 4712, 5168, 7688, 8116, 8432, 9424, 10013, 10336, 15376, 16232, 16337, 16864, 18259, 18848, 20026, 30752, 32464, 32674, 34493, 36518, 38551, 40052, 62899, 64928, 65348, 68986, 73036, 77102, 80104, 125798, 130696, 137972, 146072, 154204, 160208, 251596, 261392, 275944, 292144, 308408, 310403, 320416, 503192, 522784, 551888, 584288, 616816, 620806, 655367, 1006384, 1069283, 1103776, 1195081, 1233632, 1241612, 1310734, 1949869, 2012768, 2138566, 2390162, 2483224, 2621468, 3899738, 4277132, 4780324, 4966448, 5242936, 7799476, 8554264, 9560648, 9932896, 10485872, 15598952, 17108528, 19121296, 20316377, 20971744, 31197904, 33147773, 34217056, 37047511, 38242592, 40632754, 62395808, 66295546, 74095022, 81265508, 132591092, 148190044, 162531016, 265182184, 296380088, 325062032, 530364368, 592760176, 629807687, 650124064, 1060728736, 1185520352, 1259615374, 2519230748, 5038461496, 10076922992, 20153845984]

約数ペア:

[(1, 20153845984), (2, 10076922992), (4, 5038461496), (8, 2519230748), (16, 1259615374), (17, 1185520352), (19, 1060728736), (31, 650124064), (32, 629807687), (34, 592760176), (38, 530364368), (62, 325062032), (68, 296380088), (76, 265182184), (124, 162531016), (136, 148190044), (152, 132591092), (248, 81265508), (272, 74095022), (304, 66295546), (323, 62395808), (496, 40632754), (527, 38242592), (544, 37047511), (589, 34217056), (608, 33147773), (646, 31197904), (961, 20971744), (992, 20316377), (1054, 19121296), (1178, 17108528), (1292, 15598952), (1922, 10485872), (2029, 9932896), (2108, 9560648), (2356, 8554264), (2584, 7799476), (3844, 5242936), (4058, 4966448), (4216, 4780324), (4712, 4277132), (5168, 3899738), (7688, 2621468), (8116, 2483224), (8432, 2390162), (9424, 2138566), (10013, 2012768), (10336, 1949869), (15376, 1310734), (16232, 1241612), (16337, 1233632), (16864, 1195081), (18259, 1103776), (18848, 1069283), (20026, 1006384), (30752, 655367), (32464, 620806), (32674, 616816), (34493, 584288), (36518, 551888), (38551, 522784), (40052, 503192), (62899, 320416), (64928, 310403), (65348, 308408), (68986, 292144), (73036, 275944), (77102, 261392), (80104, 251596), (125798, 160208), (130696, 154204), (137972, 146072)]