642287884

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2857}}^1$

素因数の和:2943

約数の個数: 72

約数和(自身を含む): 1386655872

約数和(自身を除く): 744367988

約数列:

[1, 2, 4, 7, 14, 28, 31, 37, 49, 62, 74, 98, 124, 148, 196, 217, 259, 434, 518, 868, 1036, 1147, 1519, 1813, 2294, 2857, 3038, 3626, 4588, 5714, 6076, 7252, 8029, 11428, 16058, 19999, 32116, 39998, 56203, 79996, 88567, 105709, 112406, 139993, 177134, 211418, 224812, 279986, 354268, 422836, 559972, 619969, 739963, 1239938, 1479926, 2479876, 2959852, 3276979, 4339783, 5179741, 6553958, 8679566, 10359482, 13107916, 17359132, 20718964, 22938853, 45877706, 91755412, 160571971, 321143942, 642287884]

約数ペア:

[(1, 642287884), (2, 321143942), (4, 160571971), (7, 91755412), (14, 45877706), (28, 22938853), (31, 20718964), (37, 17359132), (49, 13107916), (62, 10359482), (74, 8679566), (98, 6553958), (124, 5179741), (148, 4339783), (196, 3276979), (217, 2959852), (259, 2479876), (434, 1479926), (518, 1239938), (868, 739963), (1036, 619969), (1147, 559972), (1519, 422836), (1813, 354268), (2294, 279986), (2857, 224812), (3038, 211418), (3626, 177134), (4588, 139993), (5714, 112406), (6076, 105709), (7252, 88567), (8029, 79996), (11428, 56203), (16058, 39998), (19999, 32116)]