4047820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 10059840

約数和(自身を除く): 6012020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 997, 1015, 1994, 2030, 3988, 4060, 4985, 6979, 9970, 13958, 19940, 27916, 28913, 34895, 57826, 69790, 115652, 139580, 144565, 202391, 289130, 404782, 578260, 809564, 1011955, 2023910, 4047820]

約数ペア:

[(1, 4047820), (2, 2023910), (4, 1011955), (5, 809564), (7, 578260), (10, 404782), (14, 289130), (20, 202391), (28, 144565), (29, 139580), (35, 115652), (58, 69790), (70, 57826), (116, 34895), (140, 28913), (145, 27916), (203, 19940), (290, 13958), (406, 9970), (580, 6979), (812, 4985), (997, 4060), (1015, 3988), (1994, 2030)]