28289680

素因数分解:

$2^4\times 5^1\times {\mathrm{353621}}^1$

素因数の和:353634

約数の個数: 20

約数和(自身を含む): 65773692

約数和(自身を除く): 37484012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353621, 707242, 1414484, 1768105, 2828968, 3536210, 5657936, 7072420, 14144840, 28289680]

約数ペア:

[(1, 28289680), (2, 14144840), (4, 7072420), (5, 5657936), (8, 3536210), (10, 2828968), (16, 1768105), (20, 1414484), (40, 707242), (80, 353621)]