20335210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{647}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 41990400

約数和(自身を除く): 21655190

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 449, 647, 898, 1294, 2245, 3143, 3235, 4490, 4529, 6286, 6470, 9058, 15715, 22645, 31430, 45290, 290503, 581006, 1452515, 2033521, 2905030, 4067042, 10167605, 20335210]

約数ペア:

[(1, 20335210), (2, 10167605), (5, 4067042), (7, 2905030), (10, 2033521), (14, 1452515), (35, 581006), (70, 290503), (449, 45290), (647, 31430), (898, 22645), (1294, 15715), (2245, 9058), (3143, 6470), (3235, 6286), (4490, 4529)]