20069420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20479}}^1$

素因数の和:20502

約数の個数: 36

約数和(自身を含む): 49029120

約数和(自身を除く): 28959700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20479, 40958, 81916, 102395, 143353, 204790, 286706, 409580, 573412, 716765, 1003471, 1433530, 2006942, 2867060, 4013884, 5017355, 10034710, 20069420]

約数ペア:

[(1, 20069420), (2, 10034710), (4, 5017355), (5, 4013884), (7, 2867060), (10, 2006942), (14, 1433530), (20, 1003471), (28, 716765), (35, 573412), (49, 409580), (70, 286706), (98, 204790), (140, 143353), (196, 102395), (245, 81916), (490, 40958), (980, 20479)]