31597820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 69279840

約数和(自身を除く): 37682020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 290, 314, 347, 580, 628, 694, 785, 1388, 1570, 1735, 3140, 3470, 4553, 6940, 9106, 10063, 18212, 20126, 22765, 40252, 45530, 50315, 54479, 91060, 100630, 108958, 201260, 217916, 272395, 544790, 1089580, 1579891, 3159782, 6319564, 7899455, 15798910, 31597820]

約数ペア:

[(1, 31597820), (2, 15798910), (4, 7899455), (5, 6319564), (10, 3159782), (20, 1579891), (29, 1089580), (58, 544790), (116, 272395), (145, 217916), (157, 201260), (290, 108958), (314, 100630), (347, 91060), (580, 54479), (628, 50315), (694, 45530), (785, 40252), (1388, 22765), (1570, 20126), (1735, 18212), (3140, 10063), (3470, 9106), (4553, 6940)]