28705352

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 62160000

約数和(自身を除く): 33454648

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 73, 76, 104, 146, 152, 199, 247, 292, 398, 494, 584, 796, 949, 988, 1387, 1592, 1898, 1976, 2587, 2774, 3781, 3796, 5174, 5548, 7562, 7592, 10348, 11096, 14527, 15124, 18031, 20696, 29054, 30248, 36062, 49153, 58108, 72124, 98306, 116216, 144248, 188851, 196612, 276013, 377702, 393224, 552026, 755404, 1104052, 1510808, 2208104, 3588169, 7176338, 14352676, 28705352]

約数ペア:

[(1, 28705352), (2, 14352676), (4, 7176338), (8, 3588169), (13, 2208104), (19, 1510808), (26, 1104052), (38, 755404), (52, 552026), (73, 393224), (76, 377702), (104, 276013), (146, 196612), (152, 188851), (199, 144248), (247, 116216), (292, 98306), (398, 72124), (494, 58108), (584, 49153), (796, 36062), (949, 30248), (988, 29054), (1387, 20696), (1592, 18031), (1898, 15124), (1976, 14527), (2587, 11096), (2774, 10348), (3781, 7592), (3796, 7562), (5174, 5548)]