7661440

素因数分解:

$2^7\times 5^1\times {\mathrm{11971}}^1$

素因数の和:11990

約数の個数: 32

約数和(自身を含む): 18317160

約数和(自身を除く): 10655720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 11971, 23942, 47884, 59855, 95768, 119710, 191536, 239420, 383072, 478840, 766144, 957680, 1532288, 1915360, 3830720, 7661440]

約数ペア:

[(1, 7661440), (2, 3830720), (4, 1915360), (5, 1532288), (8, 957680), (10, 766144), (16, 478840), (20, 383072), (32, 239420), (40, 191536), (64, 119710), (80, 95768), (128, 59855), (160, 47884), (320, 23942), (640, 11971)]