78840783

素因数分解:

$3^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{659}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 135442560

約数和(自身を除く): 56601777

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 211, 567, 633, 659, 1477, 1899, 1977, 4431, 4613, 5697, 5931, 13293, 13839, 17091, 17793, 39879, 41517, 53379, 119637, 124551, 139049, 373653, 417147, 973343, 1251441, 2920029, 3754323, 8760087, 11262969, 26280261, 78840783]

約数ペア:

[(1, 78840783), (3, 26280261), (7, 11262969), (9, 8760087), (21, 3754323), (27, 2920029), (63, 1251441), (81, 973343), (189, 417147), (211, 373653), (567, 139049), (633, 124551), (659, 119637), (1477, 53379), (1899, 41517), (1977, 39879), (4431, 17793), (4613, 17091), (5697, 13839), (5931, 13293)]