13131020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13399}}^1$

素因数の和:13422

約数の個数: 36

約数和(自身を含む): 32079600

約数和(自身を除く): 18948580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 13399, 26798, 53596, 66995, 93793, 133990, 187586, 267980, 375172, 468965, 656551, 937930, 1313102, 1875860, 2626204, 3282755, 6565510, 13131020]

約数ペア:

[(1, 13131020), (2, 6565510), (4, 3282755), (5, 2626204), (7, 1875860), (10, 1313102), (14, 937930), (20, 656551), (28, 468965), (35, 375172), (49, 267980), (70, 187586), (98, 133990), (140, 93793), (196, 66995), (245, 53596), (490, 26798), (980, 13399)]