271421780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{276961}}^1$

素因数の和:276984

約数の個数: 36

約数和(自身を含む): 663047028

約数和(自身を除く): 391625248

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 276961, 553922, 1107844, 1384805, 1938727, 2769610, 3877454, 5539220, 7754908, 9693635, 13571089, 19387270, 27142178, 38774540, 54284356, 67855445, 135710890, 271421780]

約数ペア:

[(1, 271421780), (2, 135710890), (4, 67855445), (5, 54284356), (7, 38774540), (10, 27142178), (14, 19387270), (20, 13571089), (28, 9693635), (35, 7754908), (49, 5539220), (70, 3877454), (98, 2769610), (140, 1938727), (196, 1384805), (245, 1107844), (490, 553922), (980, 276961)]