81287332

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1319}}^1$

素因数の和:1432

約数の個数: 48

約数和(自身を含む): 170311680

約数和(自身を除く): 89024348

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 71, 124, 142, 217, 284, 434, 497, 868, 994, 1319, 1988, 2201, 2638, 4402, 5276, 8804, 9233, 15407, 18466, 30814, 36932, 40889, 61628, 81778, 93649, 163556, 187298, 286223, 374596, 572446, 655543, 1144892, 1311086, 2622172, 2903119, 5806238, 11612476, 20321833, 40643666, 81287332]

約数ペア:

[(1, 81287332), (2, 40643666), (4, 20321833), (7, 11612476), (14, 5806238), (28, 2903119), (31, 2622172), (62, 1311086), (71, 1144892), (124, 655543), (142, 572446), (217, 374596), (284, 286223), (434, 187298), (497, 163556), (868, 93649), (994, 81778), (1319, 61628), (1988, 40889), (2201, 36932), (2638, 30814), (4402, 18466), (5276, 15407), (8804, 9233)]