128472001

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:361

約数の個数: 24

約数和(自身を含む): 154132160

約数和(自身を除く): 25660159

約数列:

[1, 7, 29, 139, 157, 203, 841, 973, 1099, 4031, 4553, 5887, 21823, 28217, 31871, 116899, 132037, 152761, 632867, 818293, 924259, 4430069, 18353143, 128472001]

約数ペア:

[(1, 128472001), (7, 18353143), (29, 4430069), (139, 924259), (157, 818293), (203, 632867), (841, 152761), (973, 132037), (1099, 116899), (4031, 31871), (4553, 28217), (5887, 21823)]