839734540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1\times {\mathrm{1597}}^1$

素因数の和:2098

約数の個数: 48

約数和(自身を含む): 1797634944

約数和(自身を除く): 957900404

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 431, 610, 862, 1220, 1597, 1724, 2155, 3194, 4310, 6388, 7985, 8620, 15970, 26291, 31940, 52582, 97417, 105164, 131455, 194834, 262910, 389668, 487085, 525820, 688307, 974170, 1376614, 1948340, 2753228, 3441535, 6883070, 13766140, 41986727, 83973454, 167946908, 209933635, 419867270, 839734540]

約数ペア:

[(1, 839734540), (2, 419867270), (4, 209933635), (5, 167946908), (10, 83973454), (20, 41986727), (61, 13766140), (122, 6883070), (244, 3441535), (305, 2753228), (431, 1948340), (610, 1376614), (862, 974170), (1220, 688307), (1597, 525820), (1724, 487085), (2155, 389668), (3194, 262910), (4310, 194834), (6388, 131455), (7985, 105164), (8620, 97417), (15970, 52582), (26291, 31940)]