149420560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 368280000

約数和(自身を除く): 218859440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 197, 304, 380, 394, 499, 760, 788, 985, 998, 1520, 1576, 1970, 1996, 2495, 3152, 3743, 3940, 3992, 4990, 7486, 7880, 7984, 9481, 9980, 14972, 15760, 18715, 18962, 19960, 29944, 37430, 37924, 39920, 47405, 59888, 74860, 75848, 94810, 98303, 149720, 151696, 189620, 196606, 299440, 379240, 393212, 491515, 758480, 786424, 983030, 1572848, 1867757, 1966060, 3735514, 3932120, 7471028, 7864240, 9338785, 14942056, 18677570, 29884112, 37355140, 74710280, 149420560]

約数ペア:

[(1, 149420560), (2, 74710280), (4, 37355140), (5, 29884112), (8, 18677570), (10, 14942056), (16, 9338785), (19, 7864240), (20, 7471028), (38, 3932120), (40, 3735514), (76, 1966060), (80, 1867757), (95, 1572848), (152, 983030), (190, 786424), (197, 758480), (304, 491515), (380, 393212), (394, 379240), (499, 299440), (760, 196606), (788, 189620), (985, 151696), (998, 149720), (1520, 98303), (1576, 94810), (1970, 75848), (1996, 74860), (2495, 59888), (3152, 47405), (3743, 39920), (3940, 37924), (3992, 37430), (4990, 29944), (7486, 19960), (7880, 18962), (7984, 18715), (9481, 15760), (9980, 14972)]