81464670

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{43103}}^1$

素因数の和:43126

約数の個数: 64

約数和(自身を含む): 248279040

約数和(自身を除く): 166814370

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 43103, 86206, 129309, 215515, 258618, 301721, 387927, 431030, 603442, 646545, 775854, 905163, 1163781, 1293090, 1508605, 1810326, 1939635, 2327562, 2715489, 3017210, 3879270, 4525815, 5430978, 5818905, 8146467, 9051630, 11637810, 13577445, 16292934, 27154890, 40732335, 81464670]

約数ペア:

[(1, 81464670), (2, 40732335), (3, 27154890), (5, 16292934), (6, 13577445), (7, 11637810), (9, 9051630), (10, 8146467), (14, 5818905), (15, 5430978), (18, 4525815), (21, 3879270), (27, 3017210), (30, 2715489), (35, 2327562), (42, 1939635), (45, 1810326), (54, 1508605), (63, 1293090), (70, 1163781), (90, 905163), (105, 775854), (126, 646545), (135, 603442), (189, 431030), (210, 387927), (270, 301721), (315, 258618), (378, 215515), (630, 129309), (945, 86206), (1890, 43103)]