749380

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 1595160

約数和(自身を除く): 845780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 421, 445, 842, 890, 1684, 1780, 2105, 4210, 8420, 37469, 74938, 149876, 187345, 374690, 749380]

約数ペア:

[(1, 749380), (2, 374690), (4, 187345), (5, 149876), (10, 74938), (20, 37469), (89, 8420), (178, 4210), (356, 2105), (421, 1780), (445, 1684), (842, 890)]