81379323

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{523}}^1$

素因数の和:665

約数の個数: 40

約数和(自身を含む): 130105008

約数和(自身を除く): 48725685

約数列:

[1, 3, 9, 17, 27, 51, 81, 113, 153, 339, 459, 523, 1017, 1377, 1569, 1921, 3051, 4707, 5763, 8891, 9153, 14121, 17289, 26673, 42363, 51867, 59099, 80019, 155601, 177297, 240057, 531891, 720171, 1004683, 1595673, 3014049, 4787019, 9042147, 27126441, 81379323]

約数ペア:

[(1, 81379323), (3, 27126441), (9, 9042147), (17, 4787019), (27, 3014049), (51, 1595673), (81, 1004683), (113, 720171), (153, 531891), (339, 240057), (459, 177297), (523, 155601), (1017, 80019), (1377, 59099), (1569, 51867), (1921, 42363), (3051, 26673), (4707, 17289), (5763, 14121), (8891, 9153)]