66519760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 164721600

約数和(自身を除く): 98201840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 107, 152, 190, 214, 304, 380, 409, 428, 535, 760, 818, 856, 1070, 1520, 1636, 1712, 2033, 2045, 2140, 3272, 4066, 4090, 4280, 6544, 7771, 8132, 8180, 8560, 10165, 15542, 16264, 16360, 20330, 31084, 32528, 32720, 38855, 40660, 43763, 62168, 77710, 81320, 87526, 124336, 155420, 162640, 175052, 218815, 310840, 350104, 437630, 621680, 700208, 831497, 875260, 1662994, 1750520, 3325988, 3501040, 4157485, 6651976, 8314970, 13303952, 16629940, 33259880, 66519760]

約数ペア:

[(1, 66519760), (2, 33259880), (4, 16629940), (5, 13303952), (8, 8314970), (10, 6651976), (16, 4157485), (19, 3501040), (20, 3325988), (38, 1750520), (40, 1662994), (76, 875260), (80, 831497), (95, 700208), (107, 621680), (152, 437630), (190, 350104), (214, 310840), (304, 218815), (380, 175052), (409, 162640), (428, 155420), (535, 124336), (760, 87526), (818, 81320), (856, 77710), (1070, 62168), (1520, 43763), (1636, 40660), (1712, 38855), (2033, 32720), (2045, 32528), (2140, 31084), (3272, 20330), (4066, 16360), (4090, 16264), (4280, 15542), (6544, 10165), (7771, 8560), (8132, 8180)]