30660280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{15643}}^1$

素因数の和:15668

約数の個数: 48

約数和(自身を含む): 80253720

約数和(自身を除く): 49593440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 15643, 31286, 62572, 78215, 109501, 125144, 156430, 219002, 312860, 438004, 547505, 625720, 766507, 876008, 1095010, 1533014, 2190020, 3066028, 3832535, 4380040, 6132056, 7665070, 15330140, 30660280]

約数ペア:

[(1, 30660280), (2, 15330140), (4, 7665070), (5, 6132056), (7, 4380040), (8, 3832535), (10, 3066028), (14, 2190020), (20, 1533014), (28, 1095010), (35, 876008), (40, 766507), (49, 625720), (56, 547505), (70, 438004), (98, 312860), (140, 219002), (196, 156430), (245, 125144), (280, 109501), (392, 78215), (490, 62572), (980, 31286), (1960, 15643)]