639551844

素因数分解:

$2^2\times 3^2\times {\mathrm{1579}}^1\times {\mathrm{11251}}^1$

素因数の和:12840

約数の個数: 36

約数和(自身を含む): 1617812560

約数和(自身を除く): 978260716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 1579, 3158, 4737, 6316, 9474, 11251, 14211, 18948, 22502, 28422, 33753, 45004, 56844, 67506, 101259, 135012, 202518, 405036, 17765329, 35530658, 53295987, 71061316, 106591974, 159887961, 213183948, 319775922, 639551844]

約数ペア:

[(1, 639551844), (2, 319775922), (3, 213183948), (4, 159887961), (6, 106591974), (9, 71061316), (12, 53295987), (18, 35530658), (36, 17765329), (1579, 405036), (3158, 202518), (4737, 135012), (6316, 101259), (9474, 67506), (11251, 56844), (14211, 45004), (18948, 33753), (22502, 28422)]