2080208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 40

約数和(自身を含む): 4432008

約数和(自身を除く): 2351800

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 73, 104, 137, 146, 208, 274, 292, 548, 584, 949, 1096, 1168, 1781, 1898, 2192, 3562, 3796, 7124, 7592, 10001, 14248, 15184, 20002, 28496, 40004, 80008, 130013, 160016, 260026, 520052, 1040104, 2080208]

約数ペア:

[(1, 2080208), (2, 1040104), (4, 520052), (8, 260026), (13, 160016), (16, 130013), (26, 80008), (52, 40004), (73, 28496), (104, 20002), (137, 15184), (146, 14248), (208, 10001), (274, 7592), (292, 7124), (548, 3796), (584, 3562), (949, 2192), (1096, 1898), (1168, 1781)]