198471020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{902141}}^1$

素因数の和:902161

約数の個数: 24

約数和(自身を含む): 454679568

約数和(自身を除く): 256208548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 902141, 1804282, 3608564, 4510705, 9021410, 9923551, 18042820, 19847102, 39694204, 49617755, 99235510, 198471020]

約数ペア:

[(1, 198471020), (2, 99235510), (4, 49617755), (5, 39694204), (10, 19847102), (11, 18042820), (20, 9923551), (22, 9021410), (44, 4510705), (55, 3608564), (110, 1804282), (220, 902141)]