209945265

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{7703}}^1$

素因数の和:7813

約数の個数: 32

約数和(自身を含む): 355000320

約数和(自身を除く): 145055055

約数列:

[1, 3, 5, 15, 23, 69, 79, 115, 237, 345, 395, 1185, 1817, 5451, 7703, 9085, 23109, 27255, 38515, 115545, 177169, 531507, 608537, 885845, 1825611, 2657535, 3042685, 9128055, 13996351, 41989053, 69981755, 209945265]

約数ペア:

[(1, 209945265), (3, 69981755), (5, 41989053), (15, 13996351), (23, 9128055), (69, 3042685), (79, 2657535), (115, 1825611), (237, 885845), (345, 608537), (395, 531507), (1185, 177169), (1817, 115545), (5451, 38515), (7703, 27255), (9085, 23109)]