258987454

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{947}}^1$

素因数の和:1392

約数の個数: 32

約数和(自身を含む): 439022592

約数和(自身を除く): 180035138

約数列:

[1, 2, 11, 22, 31, 62, 341, 401, 682, 802, 947, 1894, 4411, 8822, 10417, 12431, 20834, 24862, 29357, 58714, 136741, 273482, 322927, 379747, 645854, 759494, 4177217, 8354434, 11772157, 23544314, 129493727, 258987454]

約数ペア:

[(1, 258987454), (2, 129493727), (11, 23544314), (22, 11772157), (31, 8354434), (62, 4177217), (341, 759494), (401, 645854), (682, 379747), (802, 322927), (947, 273482), (1894, 136741), (4411, 58714), (8822, 29357), (10417, 24862), (12431, 20834)]