27740410

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:606

約数の個数: 32

約数和(自身を含む): 51321600

約数和(自身を除く): 23581190

約数列:

[1, 2, 5, 10, 71, 89, 142, 178, 355, 439, 445, 710, 878, 890, 2195, 4390, 6319, 12638, 31169, 31595, 39071, 62338, 63190, 78142, 155845, 195355, 311690, 390710, 2774041, 5548082, 13870205, 27740410]

約数ペア:

[(1, 27740410), (2, 13870205), (5, 5548082), (10, 2774041), (71, 390710), (89, 311690), (142, 195355), (178, 155845), (355, 78142), (439, 63190), (445, 62338), (710, 39071), (878, 31595), (890, 31169), (2195, 12638), (4390, 6319)]