81577680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339907}}^1$

素因数の和:339923

約数の個数: 40

約数和(自身を含む): 252891552

約数和(自身を除く): 171313872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339907, 679814, 1019721, 1359628, 1699535, 2039442, 2719256, 3399070, 4078884, 5098605, 5438512, 6798140, 8157768, 10197210, 13596280, 16315536, 20394420, 27192560, 40788840, 81577680]

約数ペア:

[(1, 81577680), (2, 40788840), (3, 27192560), (4, 20394420), (5, 16315536), (6, 13596280), (8, 10197210), (10, 8157768), (12, 6798140), (15, 5438512), (16, 5098605), (20, 4078884), (24, 3399070), (30, 2719256), (40, 2039442), (48, 1699535), (60, 1359628), (80, 1019721), (120, 679814), (240, 339907)]