6419780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7829}}^1$

素因数の和:7879

約数の個数: 24

約数和(自身を含む): 13812120

約数和(自身を除く): 7392340

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 7829, 15658, 31316, 39145, 78290, 156580, 320989, 641978, 1283956, 1604945, 3209890, 6419780]

約数ペア:

[(1, 6419780), (2, 3209890), (4, 1604945), (5, 1283956), (10, 641978), (20, 320989), (41, 156580), (82, 78290), (164, 39145), (205, 31316), (410, 15658), (820, 7829)]