66784711.000000000

素因数分解:

$2^3\times 3^3\times {\mathrm{31}}^1\times {\mathrm{20921}}^1$

素因数の和:20967

約数の個数: 64

約数和(自身を含む): 401702400

約数和(自身を除く): 261615384

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 54, 62, 72, 93, 108, 124, 186, 216, 248, 279, 372, 558, 744, 837, 1116, 1674, 2232, 3348, 6696, 20921, 41842, 62763, 83684, 125526, 167368, 188289, 251052, 376578, 502104, 564867, 648551, 753156, 1129734, 1297102, 1506312, 1945653, 2259468, 2594204, 3891306, 4518936, 5188408, 5836959, 7782612, 11673918, 15565224, 17510877, 23347836, 35021754, 46695672, 70043508, 140087016]

約数ペア:

[(1, 140087016), (2, 70043508), (3, 46695672), (4, 35021754), (6, 23347836), (8, 17510877), (9, 15565224), (12, 11673918), (18, 7782612), (24, 5836959), (27, 5188408), (31, 4518936), (36, 3891306), (54, 2594204), (62, 2259468), (72, 1945653), (93, 1506312), (108, 1297102), (124, 1129734), (186, 753156), (216, 648551), (248, 564867), (279, 502104), (372, 376578), (558, 251052), (744, 188289), (837, 167368), (1116, 125526), (1674, 83684), (2232, 62763), (3348, 41842), (6696, 20921)]