280790188

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1249}}^1$

素因数の和:1335

約数の個数: 72

約数和(自身を含む): 606480000

約数和(自身を除く): 325689812

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, 1249, 1519, 1813, 2294, 2498, 3038, 3626, 4588, 4996, 6076, 7252, 8029, 8743, 16058, 17486, 32116, 34972, 38719, 46213, 56203, 61201, 77438, 92426, 112406, 122402, 154876, 184852, 224812, 244804, 271033, 323491, 542066, 646982, 1084132, 1293964, 1432603, 1897231, 2264437, 2865206, 3794462, 4528874, 5730412, 7588924, 9057748, 10028221, 20056442, 40112884, 70197547, 140395094, 280790188]

約数ペア:

[(1, 280790188), (2, 140395094), (4, 70197547), (7, 40112884), (14, 20056442), (28, 10028221), (31, 9057748), (37, 7588924), (49, 5730412), (62, 4528874), (74, 3794462), (98, 2865206), (124, 2264437), (148, 1897231), (196, 1432603), (217, 1293964), (259, 1084132), (434, 646982), (518, 542066), (868, 323491), (1036, 271033), (1147, 244804), (1249, 224812), (1519, 184852), (1813, 154876), (2294, 122402), (2498, 112406), (3038, 92426), (3626, 77438), (4588, 61201), (4996, 56203), (6076, 46213), (7252, 38719), (8029, 34972), (8743, 32116), (16058, 17486)]