19447540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4481}}^1$

素因数の和:4528

約数の個数: 48

約数和(自身を含む): 48190464

約数和(自身を除く): 28742924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4481, 8962, 17924, 22405, 31367, 44810, 62734, 89620, 125468, 138911, 156835, 277822, 313670, 555644, 627340, 694555, 972377, 1389110, 1944754, 2778220, 3889508, 4861885, 9723770, 19447540]

約数ペア:

[(1, 19447540), (2, 9723770), (4, 4861885), (5, 3889508), (7, 2778220), (10, 1944754), (14, 1389110), (20, 972377), (28, 694555), (31, 627340), (35, 555644), (62, 313670), (70, 277822), (124, 156835), (140, 138911), (155, 125468), (217, 89620), (310, 62734), (434, 44810), (620, 31367), (868, 22405), (1085, 17924), (2170, 8962), (4340, 4481)]