315049820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{9901}}^1$

素因数の和:9990

約数の個数: 48

約数和(自身を含む): 695358048

約数和(自身を除く): 380308228

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 86, 148, 172, 185, 215, 370, 430, 740, 860, 1591, 3182, 6364, 7955, 9901, 15910, 19802, 31820, 39604, 49505, 99010, 198020, 366337, 425743, 732674, 851486, 1465348, 1702972, 1831685, 2128715, 3663370, 4257430, 7326740, 8514860, 15752491, 31504982, 63009964, 78762455, 157524910, 315049820]

約数ペア:

[(1, 315049820), (2, 157524910), (4, 78762455), (5, 63009964), (10, 31504982), (20, 15752491), (37, 8514860), (43, 7326740), (74, 4257430), (86, 3663370), (148, 2128715), (172, 1831685), (185, 1702972), (215, 1465348), (370, 851486), (430, 732674), (740, 425743), (860, 366337), (1591, 198020), (3182, 99010), (6364, 49505), (7955, 39604), (9901, 31820), (15910, 19802)]