81395170.000000000

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{114941}}^1$

素因数の和:114961

約数の個数: 64

約数和(自身を含む): 413791200

約数和(自身を除く): 289654920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 114941, 229882, 344823, 459764, 574705, 689646, 919528, 1034469, 1149410, 1379292, 1724115, 2068938, 2298820, 2758584, 3103407, 3448230, 4137876, 4597640, 5172345, 6206814, 6896460, 8275752, 10344690, 12413628, 13792920, 15517035, 20689380, 24827256, 31034070, 41378760, 62068140, 124136280]

約数ペア:

[(1, 124136280), (2, 62068140), (3, 41378760), (4, 31034070), (5, 24827256), (6, 20689380), (8, 15517035), (9, 13792920), (10, 12413628), (12, 10344690), (15, 8275752), (18, 6896460), (20, 6206814), (24, 5172345), (27, 4597640), (30, 4137876), (36, 3448230), (40, 3103407), (45, 2758584), (54, 2298820), (60, 2068938), (72, 1724115), (90, 1379292), (108, 1149410), (120, 1034469), (135, 919528), (180, 689646), (216, 574705), (270, 459764), (360, 344823), (540, 229882), (1080, 114941)]