257483220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{4291387}}^1$

素因数の和:4291399

約数の個数: 24

約数和(自身を含む): 720953184

約数和(自身を除く): 463469964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4291387, 8582774, 12874161, 17165548, 21456935, 25748322, 42913870, 51496644, 64370805, 85827740, 128741610, 257483220]

約数ペア:

[(1, 257483220), (2, 128741610), (3, 85827740), (4, 64370805), (5, 51496644), (6, 42913870), (10, 25748322), (12, 21456935), (15, 17165548), (20, 12874161), (30, 8582774), (60, 4291387)]