213717820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{2347}}^1$

素因数の和:2542

約数の個数: 48

約数和(自身を含む): 467439840

約数和(自身を除く): 253722020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 290, 314, 580, 628, 785, 1570, 2347, 3140, 4553, 4694, 9106, 9388, 11735, 18212, 22765, 23470, 45530, 46940, 68063, 91060, 136126, 272252, 340315, 368479, 680630, 736958, 1361260, 1473916, 1842395, 3684790, 7369580, 10685891, 21371782, 42743564, 53429455, 106858910, 213717820]

約数ペア:

[(1, 213717820), (2, 106858910), (4, 53429455), (5, 42743564), (10, 21371782), (20, 10685891), (29, 7369580), (58, 3684790), (116, 1842395), (145, 1473916), (157, 1361260), (290, 736958), (314, 680630), (580, 368479), (628, 340315), (785, 272252), (1570, 136126), (2347, 91060), (3140, 68063), (4553, 46940), (4694, 45530), (9106, 23470), (9388, 22765), (11735, 18212)]