28643264

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:397

約数の個数: 56

約数和(自身を含む): 61874400

約数和(自身を除く): 33231136

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 173, 199, 208, 346, 398, 416, 692, 796, 832, 1384, 1592, 2249, 2587, 2768, 3184, 4498, 5174, 5536, 6368, 8996, 10348, 11072, 12736, 17992, 20696, 34427, 35984, 41392, 68854, 71968, 82784, 137708, 143936, 165568, 275416, 447551, 550832, 895102, 1101664, 1790204, 2203328, 3580408, 7160816, 14321632, 28643264]

約数ペア:

[(1, 28643264), (2, 14321632), (4, 7160816), (8, 3580408), (13, 2203328), (16, 1790204), (26, 1101664), (32, 895102), (52, 550832), (64, 447551), (104, 275416), (173, 165568), (199, 143936), (208, 137708), (346, 82784), (398, 71968), (416, 68854), (692, 41392), (796, 35984), (832, 34427), (1384, 20696), (1592, 17992), (2249, 12736), (2587, 11072), (2768, 10348), (3184, 8996), (4498, 6368), (5174, 5536)]