291258916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{2039}}^1$

素因数の和:2164

約数の個数: 48

約数和(自身を含む): 570971520

約数和(自身を除く): 279712604

約数列:

[1, 2, 4, 13, 26, 41, 52, 67, 82, 134, 164, 268, 533, 871, 1066, 1742, 2039, 2132, 2747, 3484, 4078, 5494, 8156, 10988, 26507, 35711, 53014, 71422, 83599, 106028, 136613, 142844, 167198, 273226, 334396, 546452, 1086787, 1775969, 2173574, 3551938, 4347148, 5601133, 7103876, 11202266, 22404532, 72814729, 145629458, 291258916]

約数ペア:

[(1, 291258916), (2, 145629458), (4, 72814729), (13, 22404532), (26, 11202266), (41, 7103876), (52, 5601133), (67, 4347148), (82, 3551938), (134, 2173574), (164, 1775969), (268, 1086787), (533, 546452), (871, 334396), (1066, 273226), (1742, 167198), (2039, 142844), (2132, 136613), (2747, 106028), (3484, 83599), (4078, 71422), (5494, 53014), (8156, 35711), (10988, 26507)]