21288927120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88703863}}^1$

素因数の和:88703879

約数の個数: 40

約数和(自身を含む): 65995674816

約数和(自身を除く): 44706747696

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88703863, 177407726, 266111589, 354815452, 443519315, 532223178, 709630904, 887038630, 1064446356, 1330557945, 1419261808, 1774077260, 2128892712, 2661115890, 3548154520, 4257785424, 5322231780, 7096309040, 10644463560, 21288927120]

約数ペア:

[(1, 21288927120), (2, 10644463560), (3, 7096309040), (4, 5322231780), (5, 4257785424), (6, 3548154520), (8, 2661115890), (10, 2128892712), (12, 1774077260), (15, 1419261808), (16, 1330557945), (20, 1064446356), (24, 887038630), (30, 709630904), (40, 532223178), (48, 443519315), (60, 354815452), (80, 266111589), (120, 177407726), (240, 88703863)]