81995040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56941}}^1$

素因数の和:56962

約数の個数: 72

約数和(自身を含む): 279812988

約数和(自身を除く): 197817948

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56941, 113882, 170823, 227764, 284705, 341646, 455528, 512469, 569410, 683292, 854115, 911056, 1024938, 1138820, 1366584, 1708230, 1822112, 2049876, 2277640, 2562345, 2733168, 3416460, 4099752, 4555280, 5124690, 5466336, 6832920, 8199504, 9110560, 10249380, 13665840, 16399008, 20498760, 27331680, 40997520, 81995040]

約数ペア:

[(1, 81995040), (2, 40997520), (3, 27331680), (4, 20498760), (5, 16399008), (6, 13665840), (8, 10249380), (9, 9110560), (10, 8199504), (12, 6832920), (15, 5466336), (16, 5124690), (18, 4555280), (20, 4099752), (24, 3416460), (30, 2733168), (32, 2562345), (36, 2277640), (40, 2049876), (45, 1822112), (48, 1708230), (60, 1366584), (72, 1138820), (80, 1024938), (90, 911056), (96, 854115), (120, 683292), (144, 569410), (160, 512469), (180, 455528), (240, 341646), (288, 284705), (360, 227764), (480, 170823), (720, 113882), (1440, 56941)]