28880348

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 63541632

約数和(自身を除く): 34661284

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 43, 68, 83, 86, 119, 166, 172, 238, 289, 301, 332, 476, 578, 581, 602, 731, 1156, 1162, 1204, 1411, 1462, 2023, 2324, 2822, 2924, 3569, 4046, 5117, 5644, 7138, 8092, 9877, 10234, 12427, 14276, 19754, 20468, 23987, 24854, 24983, 39508, 47974, 49708, 49966, 60673, 86989, 95948, 99932, 121346, 167909, 173978, 242692, 335818, 347956, 424711, 671636, 849422, 1031441, 1698844, 2062882, 4125764, 7220087, 14440174, 28880348]

約数ペア:

[(1, 28880348), (2, 14440174), (4, 7220087), (7, 4125764), (14, 2062882), (17, 1698844), (28, 1031441), (34, 849422), (43, 671636), (68, 424711), (83, 347956), (86, 335818), (119, 242692), (166, 173978), (172, 167909), (238, 121346), (289, 99932), (301, 95948), (332, 86989), (476, 60673), (578, 49966), (581, 49708), (602, 47974), (731, 39508), (1156, 24983), (1162, 24854), (1204, 23987), (1411, 20468), (1462, 19754), (2023, 14276), (2324, 12427), (2822, 10234), (2924, 9877), (3569, 8092), (4046, 7138), (5117, 5644)]