20168608

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 42154560

約数和(自身を除く): 21985952

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 67, 92, 134, 184, 268, 368, 409, 536, 736, 818, 1072, 1541, 1636, 2144, 3082, 3272, 6164, 6544, 9407, 12328, 13088, 18814, 24656, 27403, 37628, 49312, 54806, 75256, 109612, 150512, 219224, 301024, 438448, 630269, 876896, 1260538, 2521076, 5042152, 10084304, 20168608]

約数ペア:

[(1, 20168608), (2, 10084304), (4, 5042152), (8, 2521076), (16, 1260538), (23, 876896), (32, 630269), (46, 438448), (67, 301024), (92, 219224), (134, 150512), (184, 109612), (268, 75256), (368, 54806), (409, 49312), (536, 37628), (736, 27403), (818, 24656), (1072, 18814), (1541, 13088), (1636, 12328), (2144, 9407), (3082, 6544), (3272, 6164)]