212445560

素因数分解:

$2^3\times 5^1\times {\mathrm{5311139}}^1$

素因数の和:5311150

約数の個数: 16

約数和(自身を含む): 478002600

約数和(自身を除く): 265557040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5311139, 10622278, 21244556, 26555695, 42489112, 53111390, 106222780, 212445560]

約数ペア:

[(1, 212445560), (2, 106222780), (4, 53111390), (5, 42489112), (8, 26555695), (10, 21244556), (20, 10622278), (40, 5311139)]