8967980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{9151}}^1$

素因数の和:9174

約数の個数: 36

約数和(自身を含む): 21909888

約数和(自身を除く): 12941908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 9151, 18302, 36604, 45755, 64057, 91510, 128114, 183020, 256228, 320285, 448399, 640570, 896798, 1281140, 1793596, 2241995, 4483990, 8967980]

約数ペア:

[(1, 8967980), (2, 4483990), (4, 2241995), (5, 1793596), (7, 1281140), (10, 896798), (14, 640570), (20, 448399), (28, 320285), (35, 256228), (49, 183020), (70, 128114), (98, 91510), (140, 64057), (196, 45755), (245, 36604), (490, 18302), (980, 9151)]