18484720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12161}}^1$

素因数の和:12193

約数の個数: 40

約数和(自身を含む): 45242640

約数和(自身を除く): 26757920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12161, 24322, 48644, 60805, 97288, 121610, 194576, 231059, 243220, 462118, 486440, 924236, 972880, 1155295, 1848472, 2310590, 3696944, 4621180, 9242360, 18484720]

約数ペア:

[(1, 18484720), (2, 9242360), (4, 4621180), (5, 3696944), (8, 2310590), (10, 1848472), (16, 1155295), (19, 972880), (20, 924236), (38, 486440), (40, 462118), (76, 243220), (80, 231059), (95, 194576), (152, 121610), (190, 97288), (304, 60805), (380, 48644), (760, 24322), (1520, 12161)]