28708784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 66370752

約数和(自身を除く): 37661968

約数列:

[1, 2, 4, 8, 13, 16, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 184, 208, 221, 272, 299, 353, 368, 391, 442, 598, 706, 782, 884, 1196, 1412, 1564, 1768, 2392, 2824, 3128, 3536, 4589, 4784, 5083, 5648, 6001, 6256, 8119, 9178, 10166, 12002, 16238, 18356, 20332, 24004, 32476, 36712, 40664, 48008, 64952, 73424, 78013, 81328, 96016, 105547, 129904, 138023, 156026, 211094, 276046, 312052, 422188, 552092, 624104, 844376, 1104184, 1248208, 1688752, 1794299, 2208368, 3588598, 7177196, 14354392, 28708784]

約数ペア:

[(1, 28708784), (2, 14354392), (4, 7177196), (8, 3588598), (13, 2208368), (16, 1794299), (17, 1688752), (23, 1248208), (26, 1104184), (34, 844376), (46, 624104), (52, 552092), (68, 422188), (92, 312052), (104, 276046), (136, 211094), (184, 156026), (208, 138023), (221, 129904), (272, 105547), (299, 96016), (353, 81328), (368, 78013), (391, 73424), (442, 64952), (598, 48008), (706, 40664), (782, 36712), (884, 32476), (1196, 24004), (1412, 20332), (1564, 18356), (1768, 16238), (2392, 12002), (2824, 10166), (3128, 9178), (3536, 8119), (4589, 6256), (4784, 6001), (5083, 5648)]