18691540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19073}}^1$

素因数の和:19096

約数の個数: 36

約数和(自身を含む): 45663156

約数和(自身を除く): 26971616

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19073, 38146, 76292, 95365, 133511, 190730, 267022, 381460, 534044, 667555, 934577, 1335110, 1869154, 2670220, 3738308, 4672885, 9345770, 18691540]

約数ペア:

[(1, 18691540), (2, 9345770), (4, 4672885), (5, 3738308), (7, 2670220), (10, 1869154), (14, 1335110), (20, 934577), (28, 667555), (35, 534044), (49, 381460), (70, 267022), (98, 190730), (140, 133511), (196, 95365), (245, 76292), (490, 38146), (980, 19073)]