81305290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1327}}^1$

素因数の和:1902

約数の個数: 32

約数和(自身を含む): 160061184

約数和(自身を除く): 78755894

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 557, 1114, 1327, 2654, 2785, 5570, 6127, 6635, 12254, 13270, 14597, 29194, 30635, 61270, 72985, 145970, 739139, 1478278, 3695695, 7391390, 8130529, 16261058, 40652645, 81305290]

約数ペア:

[(1, 81305290), (2, 40652645), (5, 16261058), (10, 8130529), (11, 7391390), (22, 3695695), (55, 1478278), (110, 739139), (557, 145970), (1114, 72985), (1327, 61270), (2654, 30635), (2785, 29194), (5570, 14597), (6127, 13270), (6635, 12254)]