42659960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{607}}^1$

素因数の和:876

約数の個数: 64

約数和(自身を含む): 110315520

約数和(自身を除く): 67655560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 607, 1004, 1214, 1255, 1757, 2008, 2428, 2510, 3035, 3514, 4249, 4856, 5020, 6070, 7028, 8498, 8785, 10040, 12140, 14056, 16996, 17570, 21245, 24280, 33992, 35140, 42490, 70280, 84980, 152357, 169960, 304714, 609428, 761785, 1066499, 1218856, 1523570, 2132998, 3047140, 4265996, 5332495, 6094280, 8531992, 10664990, 21329980, 42659960]

約数ペア:

[(1, 42659960), (2, 21329980), (4, 10664990), (5, 8531992), (7, 6094280), (8, 5332495), (10, 4265996), (14, 3047140), (20, 2132998), (28, 1523570), (35, 1218856), (40, 1066499), (56, 761785), (70, 609428), (140, 304714), (251, 169960), (280, 152357), (502, 84980), (607, 70280), (1004, 42490), (1214, 35140), (1255, 33992), (1757, 24280), (2008, 21245), (2428, 17570), (2510, 16996), (3035, 14056), (3514, 12140), (4249, 10040), (4856, 8785), (5020, 8498), (6070, 7028)]