198016775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31307}}^1$

素因数の和:31351

約数の個数: 24

約数和(自身を含む): 279517824

約数和(自身を除く): 81501049

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 1265, 6325, 31307, 156535, 344377, 720061, 782675, 1721885, 3600305, 7920671, 8609425, 18001525, 39603355, 198016775]

約数ペア:

[(1, 198016775), (5, 39603355), (11, 18001525), (23, 8609425), (25, 7920671), (55, 3600305), (115, 1721885), (253, 782675), (275, 720061), (575, 344377), (1265, 156535), (6325, 31307)]