20147984605

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{134909}}^1$

素因数の和:135189

約数の個数: 32

約数和(自身を含む): 29373684480

約数和(自身を除く): 9225699875

約数列:

[1, 5, 7, 17, 35, 85, 119, 251, 595, 1255, 1757, 4267, 8785, 21335, 29869, 134909, 149345, 674545, 944363, 2293453, 4721815, 11467265, 16054171, 33862159, 80270855, 169310795, 237035113, 575656703, 1185175565, 2878283515, 4029596921, 20147984605]

約数ペア:

[(1, 20147984605), (5, 4029596921), (7, 2878283515), (17, 1185175565), (35, 575656703), (85, 237035113), (119, 169310795), (251, 80270855), (595, 33862159), (1255, 16054171), (1757, 11467265), (4267, 4721815), (8785, 2293453), (21335, 944363), (29869, 674545), (134909, 149345)]