209399330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{21521}}^1$

素因数の和:21674

約数の個数: 32

約数和(自身を含む): 433883520

約数和(自身を除く): 224484190

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 4865, 9730, 21521, 43042, 107605, 150647, 215210, 301294, 753235, 1506470, 2991419, 5982838, 14957095, 20939933, 29914190, 41879866, 104699665, 209399330]

約数ペア:

[(1, 209399330), (2, 104699665), (5, 41879866), (7, 29914190), (10, 20939933), (14, 14957095), (35, 5982838), (70, 2991419), (139, 1506470), (278, 753235), (695, 301294), (973, 215210), (1390, 150647), (1946, 107605), (4865, 43042), (9730, 21521)]