571220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^4$

素因数の和:61

約数の個数: 30

約数和(自身を含む): 1299522

約数和(自身を除く): 728302

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2197, 3380, 4394, 8788, 10985, 21970, 28561, 43940, 57122, 114244, 142805, 285610, 571220]

約数ペア:

[(1, 571220), (2, 285610), (4, 142805), (5, 114244), (10, 57122), (13, 43940), (20, 28561), (26, 21970), (52, 10985), (65, 8788), (130, 4394), (169, 3380), (260, 2197), (338, 1690), (676, 845)]