81320985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{78571}}^1$

素因数の和:78605

約数の個数: 24

約数和(自身を含む): 147086784

約数和(自身を除く): 65765799

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 78571, 235713, 392855, 707139, 1178565, 1807133, 3535695, 5421399, 9035665, 16264197, 27106995, 81320985]

約数ペア:

[(1, 81320985), (3, 27106995), (5, 16264197), (9, 9035665), (15, 5421399), (23, 3535695), (45, 1807133), (69, 1178565), (115, 707139), (207, 392855), (345, 235713), (1035, 78571)]