261939615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{80473}}^1$

素因数の和:80519

約数の個数: 32

約数和(自身を含む): 494432256

約数和(自身を除く): 232492641

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 80473, 241419, 402365, 563311, 1207095, 1689933, 2494663, 2816555, 7483989, 8449665, 12473315, 17462641, 37419945, 52387923, 87313205, 261939615]

約数ペア:

[(1, 261939615), (3, 87313205), (5, 52387923), (7, 37419945), (15, 17462641), (21, 12473315), (31, 8449665), (35, 7483989), (93, 2816555), (105, 2494663), (155, 1689933), (217, 1207095), (465, 563311), (651, 402365), (1085, 241419), (3255, 80473)]