257078302

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{947}}^1$

素因数の和:1212

約数の個数: 32

約数和(自身を含む): 425712672

約数和(自身を除く): 168634370

約数列:

[1, 2, 13, 26, 53, 106, 197, 394, 689, 947, 1378, 1894, 2561, 5122, 10441, 12311, 20882, 24622, 50191, 100382, 135733, 186559, 271466, 373118, 652483, 1304966, 2425267, 4850534, 9887627, 19775254, 128539151, 257078302]

約数ペア:

[(1, 257078302), (2, 128539151), (13, 19775254), (26, 9887627), (53, 4850534), (106, 2425267), (197, 1304966), (394, 652483), (689, 373118), (947, 271466), (1378, 186559), (1894, 135733), (2561, 100382), (5122, 50191), (10441, 24622), (12311, 20882)]