257124580

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{48883}}^1$

素因数の和:49155

約数の個数: 24

約数和(自身を含む): 542025792

約数和(自身を除く): 284901212

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 48883, 97766, 195532, 244415, 488830, 977660, 12856229, 25712458, 51424916, 64281145, 128562290, 257124580]

約数ペア:

[(1, 257124580), (2, 128562290), (4, 64281145), (5, 51424916), (10, 25712458), (20, 12856229), (263, 977660), (526, 488830), (1052, 244415), (1315, 195532), (2630, 97766), (5260, 48883)]