20007912

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:163

約数の個数: 128

約数和(自身を含む): 58320000

約数和(自身を除く): 38312088

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 19, 24, 29, 34, 38, 51, 57, 58, 68, 76, 87, 89, 102, 114, 116, 136, 152, 174, 178, 204, 228, 232, 267, 323, 348, 356, 408, 456, 493, 534, 551, 646, 696, 712, 969, 986, 1068, 1102, 1292, 1479, 1513, 1653, 1691, 1938, 1972, 2136, 2204, 2581, 2584, 2958, 3026, 3306, 3382, 3876, 3944, 4408, 4539, 5073, 5162, 5916, 6052, 6612, 6764, 7743, 7752, 9078, 9367, 10146, 10324, 11832, 12104, 13224, 13528, 15486, 18156, 18734, 20292, 20648, 28101, 28747, 30972, 36312, 37468, 40584, 43877, 49039, 56202, 57494, 61944, 74936, 86241, 87754, 98078, 112404, 114988, 131631, 147117, 172482, 175508, 196156, 224808, 229976, 263262, 294234, 344964, 351016, 392312, 526524, 588468, 689928, 833663, 1053048, 1176936, 1667326, 2500989, 3334652, 5001978, 6669304, 10003956, 20007912]

約数ペア:

[(1, 20007912), (2, 10003956), (3, 6669304), (4, 5001978), (6, 3334652), (8, 2500989), (12, 1667326), (17, 1176936), (19, 1053048), (24, 833663), (29, 689928), (34, 588468), (38, 526524), (51, 392312), (57, 351016), (58, 344964), (68, 294234), (76, 263262), (87, 229976), (89, 224808), (102, 196156), (114, 175508), (116, 172482), (136, 147117), (152, 131631), (174, 114988), (178, 112404), (204, 98078), (228, 87754), (232, 86241), (267, 74936), (323, 61944), (348, 57494), (356, 56202), (408, 49039), (456, 43877), (493, 40584), (534, 37468), (551, 36312), (646, 30972), (696, 28747), (712, 28101), (969, 20648), (986, 20292), (1068, 18734), (1102, 18156), (1292, 15486), (1479, 13528), (1513, 13224), (1653, 12104), (1691, 11832), (1938, 10324), (1972, 10146), (2136, 9367), (2204, 9078), (2581, 7752), (2584, 7743), (2958, 6764), (3026, 6612), (3306, 6052), (3382, 5916), (3876, 5162), (3944, 5073), (4408, 4539)]