661570806

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{1063}}^1$

素因数の和:1261

約数の個数: 64

約数和(自身を含む): 1458616320

約数和(自身を除く): 797045514

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 79, 101, 158, 202, 237, 303, 474, 606, 1027, 1063, 1313, 2054, 2126, 2626, 3081, 3189, 3939, 6162, 6378, 7878, 7979, 13819, 15958, 23937, 27638, 41457, 47874, 82914, 83977, 103727, 107363, 167954, 207454, 214726, 251931, 311181, 322089, 503862, 622362, 644178, 1091701, 1395719, 2183402, 2791438, 3275103, 4187157, 6550206, 8374314, 8481677, 16963354, 25445031, 50890062, 110261801, 220523602, 330785403, 661570806]

約数ペア:

[(1, 661570806), (2, 330785403), (3, 220523602), (6, 110261801), (13, 50890062), (26, 25445031), (39, 16963354), (78, 8481677), (79, 8374314), (101, 6550206), (158, 4187157), (202, 3275103), (237, 2791438), (303, 2183402), (474, 1395719), (606, 1091701), (1027, 644178), (1063, 622362), (1313, 503862), (2054, 322089), (2126, 311181), (2626, 251931), (3081, 214726), (3189, 207454), (3939, 167954), (6162, 107363), (6378, 103727), (7878, 83977), (7979, 82914), (13819, 47874), (15958, 41457), (23937, 27638)]