66438440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 162946080

約数和(自身を除く): 96507640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 107, 152, 172, 190, 214, 215, 344, 361, 380, 428, 430, 535, 722, 760, 817, 856, 860, 1070, 1444, 1634, 1720, 1805, 2033, 2140, 2888, 3268, 3610, 4066, 4085, 4280, 4601, 6536, 7220, 8132, 8170, 9202, 10165, 14440, 15523, 16264, 16340, 18404, 20330, 23005, 31046, 32680, 36808, 38627, 40660, 46010, 62092, 77254, 77615, 81320, 87419, 92020, 124184, 154508, 155230, 174838, 184040, 193135, 309016, 310460, 349676, 386270, 437095, 620920, 699352, 772540, 874190, 1545080, 1660961, 1748380, 3321922, 3496760, 6643844, 8304805, 13287688, 16609610, 33219220, 66438440]

約数ペア:

[(1, 66438440), (2, 33219220), (4, 16609610), (5, 13287688), (8, 8304805), (10, 6643844), (19, 3496760), (20, 3321922), (38, 1748380), (40, 1660961), (43, 1545080), (76, 874190), (86, 772540), (95, 699352), (107, 620920), (152, 437095), (172, 386270), (190, 349676), (214, 310460), (215, 309016), (344, 193135), (361, 184040), (380, 174838), (428, 155230), (430, 154508), (535, 124184), (722, 92020), (760, 87419), (817, 81320), (856, 77615), (860, 77254), (1070, 62092), (1444, 46010), (1634, 40660), (1720, 38627), (1805, 36808), (2033, 32680), (2140, 31046), (2888, 23005), (3268, 20330), (3610, 18404), (4066, 16340), (4085, 16264), (4280, 15523), (4601, 14440), (6536, 10165), (7220, 9202), (8132, 8170)]