21817680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90907}}^1$

素因数の和:90923

約数の個数: 40

約数和(自身を含む): 67635552

約数和(自身を除く): 45817872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90907, 181814, 272721, 363628, 454535, 545442, 727256, 909070, 1090884, 1363605, 1454512, 1818140, 2181768, 2727210, 3636280, 4363536, 5454420, 7272560, 10908840, 21817680]

約数ペア:

[(1, 21817680), (2, 10908840), (3, 7272560), (4, 5454420), (5, 4363536), (6, 3636280), (8, 2727210), (10, 2181768), (12, 1818140), (15, 1454512), (16, 1363605), (20, 1090884), (24, 909070), (30, 727256), (40, 545442), (48, 454535), (60, 363628), (80, 272721), (120, 181814), (240, 90907)]