80820560

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{17123}}^1$

素因数の和:17195

約数の個数: 40

約数和(自身を含む): 191103840

約数和(自身を除く): 110283280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 17123, 34246, 68492, 85615, 136984, 171230, 273968, 342460, 684920, 1010257, 1369840, 2020514, 4041028, 5051285, 8082056, 10102570, 16164112, 20205140, 40410280, 80820560]

約数ペア:

[(1, 80820560), (2, 40410280), (4, 20205140), (5, 16164112), (8, 10102570), (10, 8082056), (16, 5051285), (20, 4041028), (40, 2020514), (59, 1369840), (80, 1010257), (118, 684920), (236, 342460), (295, 273968), (472, 171230), (590, 136984), (944, 85615), (1180, 68492), (2360, 34246), (4720, 17123)]