81398844

素因数分解:

$2^2\times 3^4\times {\mathrm{251231}}^1$

素因数の和:251247

約数の個数: 30

約数和(自身を含む): 212793504

約数和(自身を除く): 131394660

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 251231, 502462, 753693, 1004924, 1507386, 2261079, 3014772, 4522158, 6783237, 9044316, 13566474, 20349711, 27132948, 40699422, 81398844]

約数ペア:

[(1, 81398844), (2, 40699422), (3, 27132948), (4, 20349711), (6, 13566474), (9, 9044316), (12, 6783237), (18, 4522158), (27, 3014772), (36, 2261079), (54, 1507386), (81, 1004924), (108, 753693), (162, 502462), (324, 251231)]