630140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{643}}^1$

素因数の和:666

約数の個数: 36

約数和(自身を含む): 1541736

約数和(自身を除く): 911596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 643, 980, 1286, 2572, 3215, 4501, 6430, 9002, 12860, 18004, 22505, 31507, 45010, 63014, 90020, 126028, 157535, 315070, 630140]

約数ペア:

[(1, 630140), (2, 315070), (4, 157535), (5, 126028), (7, 90020), (10, 63014), (14, 45010), (20, 31507), (28, 22505), (35, 18004), (49, 12860), (70, 9002), (98, 6430), (140, 4501), (196, 3215), (245, 2572), (490, 1286), (643, 980)]