20319768

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:262

約数の個数: 128

約数和(自身を含む): 65664000

約数和(自身を除く): 45344232

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 89, 108, 126, 151, 168, 178, 189, 216, 252, 267, 302, 356, 378, 453, 504, 534, 604, 623, 712, 756, 801, 906, 1057, 1068, 1208, 1246, 1359, 1512, 1602, 1812, 1869, 2114, 2136, 2403, 2492, 2718, 3171, 3204, 3624, 3738, 4077, 4228, 4806, 4984, 5436, 5607, 6342, 6408, 7476, 8154, 8456, 9513, 9612, 10872, 11214, 12684, 13439, 14952, 16308, 16821, 19026, 19224, 22428, 25368, 26878, 28539, 32616, 33642, 38052, 40317, 44856, 53756, 57078, 67284, 76104, 80634, 94073, 107512, 114156, 120951, 134568, 161268, 188146, 228312, 241902, 282219, 322536, 362853, 376292, 483804, 564438, 725706, 752584, 846657, 967608, 1128876, 1451412, 1693314, 2257752, 2539971, 2902824, 3386628, 5079942, 6773256, 10159884, 20319768]

約数ペア:

[(1, 20319768), (2, 10159884), (3, 6773256), (4, 5079942), (6, 3386628), (7, 2902824), (8, 2539971), (9, 2257752), (12, 1693314), (14, 1451412), (18, 1128876), (21, 967608), (24, 846657), (27, 752584), (28, 725706), (36, 564438), (42, 483804), (54, 376292), (56, 362853), (63, 322536), (72, 282219), (84, 241902), (89, 228312), (108, 188146), (126, 161268), (151, 134568), (168, 120951), (178, 114156), (189, 107512), (216, 94073), (252, 80634), (267, 76104), (302, 67284), (356, 57078), (378, 53756), (453, 44856), (504, 40317), (534, 38052), (604, 33642), (623, 32616), (712, 28539), (756, 26878), (801, 25368), (906, 22428), (1057, 19224), (1068, 19026), (1208, 16821), (1246, 16308), (1359, 14952), (1512, 13439), (1602, 12684), (1812, 11214), (1869, 10872), (2114, 9612), (2136, 9513), (2403, 8456), (2492, 8154), (2718, 7476), (3171, 6408), (3204, 6342), (3624, 5607), (3738, 5436), (4077, 4984), (4228, 4806)]