220185880

素因数分解:

$2^3\times 5^1\times {\mathrm{5504647}}^1$

素因数の和:5504658

約数の個数: 16

約数和(自身を含む): 495418320

約数和(自身を除く): 275232440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5504647, 11009294, 22018588, 27523235, 44037176, 55046470, 110092940, 220185880]

約数ペア:

[(1, 220185880), (2, 110092940), (4, 55046470), (5, 44037176), (8, 27523235), (10, 22018588), (20, 11009294), (40, 5504647)]