201106780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205211}}^1$

素因数の和:205234

約数の個数: 36

約数和(自身を含む): 491277528

約数和(自身を除く): 290170748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205211, 410422, 820844, 1026055, 1436477, 2052110, 2872954, 4104220, 5745908, 7182385, 10055339, 14364770, 20110678, 28729540, 40221356, 50276695, 100553390, 201106780]

約数ペア:

[(1, 201106780), (2, 100553390), (4, 50276695), (5, 40221356), (7, 28729540), (10, 20110678), (14, 14364770), (20, 10055339), (28, 7182385), (35, 5745908), (49, 4104220), (70, 2872954), (98, 2052110), (140, 1436477), (196, 1026055), (245, 820844), (490, 410422), (980, 205211)]