638650908

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{51721}}^1$

素因数の和:51752

約数の個数: 72

約数和(自身を含む): 1882680800

約数和(自身を除く): 1244029892

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 343, 441, 588, 686, 882, 1029, 1372, 1764, 2058, 3087, 4116, 6174, 12348, 51721, 103442, 155163, 206884, 310326, 362047, 465489, 620652, 724094, 930978, 1086141, 1448188, 1861956, 2172282, 2534329, 3258423, 4344564, 5068658, 6516846, 7602987, 10137316, 13033692, 15205974, 17740303, 22808961, 30411948, 35480606, 45617922, 53220909, 70961212, 91235844, 106441818, 159662727, 212883636, 319325454, 638650908]

約数ペア:

[(1, 638650908), (2, 319325454), (3, 212883636), (4, 159662727), (6, 106441818), (7, 91235844), (9, 70961212), (12, 53220909), (14, 45617922), (18, 35480606), (21, 30411948), (28, 22808961), (36, 17740303), (42, 15205974), (49, 13033692), (63, 10137316), (84, 7602987), (98, 6516846), (126, 5068658), (147, 4344564), (196, 3258423), (252, 2534329), (294, 2172282), (343, 1861956), (441, 1448188), (588, 1086141), (686, 930978), (882, 724094), (1029, 620652), (1372, 465489), (1764, 362047), (2058, 310326), (3087, 206884), (4116, 155163), (6174, 103442), (12348, 51721)]