808218280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{2383}}^1$

素因数の和:2594

約数の個数: 64

約数和(自身を含む): 1862380800

約数和(自身を除く): 1054162520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 139, 244, 278, 305, 488, 556, 610, 695, 1112, 1220, 1390, 2383, 2440, 2780, 4766, 5560, 8479, 9532, 11915, 16958, 19064, 23830, 33916, 42395, 47660, 67832, 84790, 95320, 145363, 169580, 290726, 331237, 339160, 581452, 662474, 726815, 1162904, 1324948, 1453630, 1656185, 2649896, 2907260, 3312370, 5814520, 6624740, 13249480, 20205457, 40410914, 80821828, 101027285, 161643656, 202054570, 404109140, 808218280]

約数ペア:

[(1, 808218280), (2, 404109140), (4, 202054570), (5, 161643656), (8, 101027285), (10, 80821828), (20, 40410914), (40, 20205457), (61, 13249480), (122, 6624740), (139, 5814520), (244, 3312370), (278, 2907260), (305, 2649896), (488, 1656185), (556, 1453630), (610, 1324948), (695, 1162904), (1112, 726815), (1220, 662474), (1390, 581452), (2383, 339160), (2440, 331237), (2780, 290726), (4766, 169580), (5560, 145363), (8479, 95320), (9532, 84790), (11915, 67832), (16958, 47660), (19064, 42395), (23830, 33916)]