209401895

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{7561}}^1$

素因数の和:7786

約数の個数: 16

約数和(自身を含む): 261342720

約数和(自身を除く): 51940825

約数列:

[1, 5, 29, 145, 191, 955, 5539, 7561, 27695, 37805, 219269, 1096345, 1444151, 7220755, 41880379, 209401895]

約数ペア:

[(1, 209401895), (5, 41880379), (29, 7220755), (145, 1444151), (191, 1096345), (955, 219269), (5539, 37805), (7561, 27695)]