77781780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{432121}}^1$

素因数の和:432136

約数の個数: 36

約数和(自身を含む): 235938612

約数和(自身を除く): 158156832

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 432121, 864242, 1296363, 1728484, 2160605, 2592726, 3889089, 4321210, 5185452, 6481815, 7778178, 8642420, 12963630, 15556356, 19445445, 25927260, 38890890, 77781780]

約数ペア:

[(1, 77781780), (2, 38890890), (3, 25927260), (4, 19445445), (5, 15556356), (6, 12963630), (9, 8642420), (10, 7778178), (12, 6481815), (15, 5185452), (18, 4321210), (20, 3889089), (30, 2592726), (36, 2160605), (45, 1728484), (60, 1296363), (90, 864242), (180, 432121)]