81800392

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{347}}^1\times {\mathrm{373}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 156182400

約数和(自身を除く): 74382008

約数列:

[1, 2, 4, 8, 79, 158, 316, 347, 373, 632, 694, 746, 1388, 1492, 2776, 2984, 27413, 29467, 54826, 58934, 109652, 117868, 129431, 219304, 235736, 258862, 517724, 1035448, 10225049, 20450098, 40900196, 81800392]

約数ペア:

[(1, 81800392), (2, 40900196), (4, 20450098), (8, 10225049), (79, 1035448), (158, 517724), (316, 258862), (347, 235736), (373, 219304), (632, 129431), (694, 117868), (746, 109652), (1388, 58934), (1492, 54826), (2776, 29467), (2984, 27413)]