198137560

素因数分解:

$2^3\times 5^1\times {\mathrm{4953439}}^1$

素因数の和:4953450

約数の個数: 16

約数和(自身を含む): 445809600

約数和(自身を除く): 247672040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4953439, 9906878, 19813756, 24767195, 39627512, 49534390, 99068780, 198137560]

約数ペア:

[(1, 198137560), (2, 99068780), (4, 49534390), (5, 39627512), (8, 24767195), (10, 19813756), (20, 9906878), (40, 4953439)]