28268492720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{280219}}^1$

素因数の和:280342

約数の個数: 80

約数和(自身を含む): 71509902240

約数和(自身を除く): 43241409520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 970, 1040, 1261, 1552, 1940, 2522, 3880, 5044, 6305, 7760, 10088, 12610, 20176, 25220, 50440, 100880, 280219, 560438, 1120876, 1401095, 2241752, 2802190, 3642847, 4483504, 5604380, 7285694, 11208760, 14571388, 18214235, 22417520, 27181243, 29142776, 36428470, 54362486, 58285552, 72856940, 108724972, 135906215, 145713880, 217449944, 271812430, 291427760, 353356159, 434899888, 543624860, 706712318, 1087249720, 1413424636, 1766780795, 2174499440, 2826849272, 3533561590, 5653698544, 7067123180, 14134246360, 28268492720]

約数ペア:

[(1, 28268492720), (2, 14134246360), (4, 7067123180), (5, 5653698544), (8, 3533561590), (10, 2826849272), (13, 2174499440), (16, 1766780795), (20, 1413424636), (26, 1087249720), (40, 706712318), (52, 543624860), (65, 434899888), (80, 353356159), (97, 291427760), (104, 271812430), (130, 217449944), (194, 145713880), (208, 135906215), (260, 108724972), (388, 72856940), (485, 58285552), (520, 54362486), (776, 36428470), (970, 29142776), (1040, 27181243), (1261, 22417520), (1552, 18214235), (1940, 14571388), (2522, 11208760), (3880, 7285694), (5044, 5604380), (6305, 4483504), (7760, 3642847), (10088, 2802190), (12610, 2241752), (20176, 1401095), (25220, 1120876), (50440, 560438), (100880, 280219)]