201561995

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 261411840

約数和(自身を除く): 59849845

約数列:

[1, 5, 23, 59, 61, 115, 295, 305, 487, 1357, 1403, 2435, 3599, 6785, 7015, 11201, 17995, 28733, 29707, 56005, 82777, 143665, 148535, 413885, 660859, 683261, 1752713, 3304295, 3416305, 8763565, 40312399, 201561995]

約数ペア:

[(1, 201561995), (5, 40312399), (23, 8763565), (59, 3416305), (61, 3304295), (115, 1752713), (295, 683261), (305, 660859), (487, 413885), (1357, 148535), (1403, 143665), (2435, 82777), (3599, 56005), (6785, 29707), (7015, 28733), (11201, 17995)]