81020715

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2803}}^1$

素因数の和:2899

約数の個数: 32

約数和(自身を含む): 135668736

約数和(自身を除く): 54648021

約数列:

[1, 3, 5, 15, 41, 47, 123, 141, 205, 235, 615, 705, 1927, 2803, 5781, 8409, 9635, 14015, 28905, 42045, 114923, 131741, 344769, 395223, 574615, 658705, 1723845, 1976115, 5401381, 16204143, 27006905, 81020715]

約数ペア:

[(1, 81020715), (3, 27006905), (5, 16204143), (15, 5401381), (41, 1976115), (47, 1723845), (123, 658705), (141, 574615), (205, 395223), (235, 344769), (615, 131741), (705, 114923), (1927, 42045), (2803, 28905), (5781, 14015), (8409, 9635)]