257111220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{4285187}}^1$

素因数の和:4285199

約数の個数: 24

約数和(自身を含む): 719911584

約数和(自身を除く): 462800364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4285187, 8570374, 12855561, 17140748, 21425935, 25711122, 42851870, 51422244, 64277805, 85703740, 128555610, 257111220]

約数ペア:

[(1, 257111220), (2, 128555610), (3, 85703740), (4, 64277805), (5, 51422244), (6, 42851870), (10, 25711122), (12, 21425935), (15, 17140748), (20, 12855561), (30, 8570374), (60, 4285187)]