28208128

素因数分解:

$2^{10}\times {\mathrm{13}}^2\times {\mathrm{163}}^1$

素因数の和:209

約数の個数: 66

約数和(自身を含む): 61434564

約数和(自身を除く): 33226436

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 163, 169, 208, 256, 326, 338, 416, 512, 652, 676, 832, 1024, 1304, 1352, 1664, 2119, 2608, 2704, 3328, 4238, 5216, 5408, 6656, 8476, 10432, 10816, 13312, 16952, 20864, 21632, 27547, 33904, 41728, 43264, 55094, 67808, 83456, 86528, 110188, 135616, 166912, 173056, 220376, 271232, 440752, 542464, 881504, 1084928, 1763008, 2169856, 3526016, 7052032, 14104064, 28208128]

約数ペア:

[(1, 28208128), (2, 14104064), (4, 7052032), (8, 3526016), (13, 2169856), (16, 1763008), (26, 1084928), (32, 881504), (52, 542464), (64, 440752), (104, 271232), (128, 220376), (163, 173056), (169, 166912), (208, 135616), (256, 110188), (326, 86528), (338, 83456), (416, 67808), (512, 55094), (652, 43264), (676, 41728), (832, 33904), (1024, 27547), (1304, 21632), (1352, 20864), (1664, 16952), (2119, 13312), (2608, 10816), (2704, 10432), (3328, 8476), (4238, 6656), (5216, 5408)]