64381240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20903}}^1$

素因数の和:20932

約数の個数: 64

約数和(自身を含む): 180610560

約数和(自身を除く): 116229320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 20903, 41806, 83612, 104515, 146321, 167224, 209030, 229933, 292642, 418060, 459866, 585284, 731605, 836120, 919732, 1149665, 1170568, 1463210, 1609531, 1839464, 2299330, 2926420, 3219062, 4598660, 5852840, 6438124, 8047655, 9197320, 12876248, 16095310, 32190620, 64381240]

約数ペア:

[(1, 64381240), (2, 32190620), (4, 16095310), (5, 12876248), (7, 9197320), (8, 8047655), (10, 6438124), (11, 5852840), (14, 4598660), (20, 3219062), (22, 2926420), (28, 2299330), (35, 1839464), (40, 1609531), (44, 1463210), (55, 1170568), (56, 1149665), (70, 919732), (77, 836120), (88, 731605), (110, 585284), (140, 459866), (154, 418060), (220, 292642), (280, 229933), (308, 209030), (385, 167224), (440, 146321), (616, 104515), (770, 83612), (1540, 41806), (3080, 20903)]