28751216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 65245824

約数和(自身を除く): 36494608

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 47, 52, 68, 94, 104, 136, 173, 188, 208, 221, 272, 346, 376, 442, 611, 692, 752, 799, 884, 1222, 1384, 1598, 1768, 2249, 2444, 2768, 2941, 3196, 3536, 4498, 4888, 5882, 6392, 8131, 8996, 9776, 10387, 11764, 12784, 16262, 17992, 20774, 23528, 32524, 35984, 38233, 41548, 47056, 65048, 76466, 83096, 105703, 130096, 138227, 152932, 166192, 211406, 276454, 305864, 422812, 552908, 611728, 845624, 1105816, 1691248, 1796951, 2211632, 3593902, 7187804, 14375608, 28751216]

約数ペア:

[(1, 28751216), (2, 14375608), (4, 7187804), (8, 3593902), (13, 2211632), (16, 1796951), (17, 1691248), (26, 1105816), (34, 845624), (47, 611728), (52, 552908), (68, 422812), (94, 305864), (104, 276454), (136, 211406), (173, 166192), (188, 152932), (208, 138227), (221, 130096), (272, 105703), (346, 83096), (376, 76466), (442, 65048), (611, 47056), (692, 41548), (752, 38233), (799, 35984), (884, 32524), (1222, 23528), (1384, 20774), (1598, 17992), (1768, 16262), (2249, 12784), (2444, 11764), (2768, 10387), (2941, 9776), (3196, 8996), (3536, 8131), (4498, 6392), (4888, 5882)]