129968140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{7727}}^1$

素因数の和:7794

約数の個数: 36

約数和(自身を含む): 282705696

約数和(自身を除く): 152737556

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 4205, 7727, 8410, 15454, 16820, 30908, 38635, 77270, 154540, 224083, 448166, 896332, 1120415, 2240830, 4481660, 6498407, 12996814, 25993628, 32492035, 64984070, 129968140]

約数ペア:

[(1, 129968140), (2, 64984070), (4, 32492035), (5, 25993628), (10, 12996814), (20, 6498407), (29, 4481660), (58, 2240830), (116, 1120415), (145, 896332), (290, 448166), (580, 224083), (841, 154540), (1682, 77270), (3364, 38635), (4205, 30908), (7727, 16820), (8410, 15454)]