201821560

素因数分解:

$2^3\times 5^1\times {\mathrm{5045539}}^1$

素因数の和:5045550

約数の個数: 16

約数和(自身を含む): 454098600

約数和(自身を除く): 252277040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5045539, 10091078, 20182156, 25227695, 40364312, 50455390, 100910780, 201821560]

約数ペア:

[(1, 201821560), (2, 100910780), (4, 50455390), (5, 40364312), (8, 25227695), (10, 20182156), (20, 10091078), (40, 5045539)]