639761280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{333209}}^1$

素因数の和:333231

約数の個数: 64

約数和(自身を含む): 2039245200

約数和(自身を除く): 1399483920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 333209, 666418, 999627, 1332836, 1666045, 1999254, 2665672, 3332090, 3998508, 4998135, 5331344, 6664180, 7997016, 9996270, 10662688, 13328360, 15994032, 19992540, 21325376, 26656720, 31988064, 39985080, 42650752, 53313440, 63976128, 79970160, 106626880, 127952256, 159940320, 213253760, 319880640, 639761280]

約数ペア:

[(1, 639761280), (2, 319880640), (3, 213253760), (4, 159940320), (5, 127952256), (6, 106626880), (8, 79970160), (10, 63976128), (12, 53313440), (15, 42650752), (16, 39985080), (20, 31988064), (24, 26656720), (30, 21325376), (32, 19992540), (40, 15994032), (48, 13328360), (60, 10662688), (64, 9996270), (80, 7997016), (96, 6664180), (120, 5331344), (128, 4998135), (160, 3998508), (192, 3332090), (240, 2665672), (320, 1999254), (384, 1666045), (480, 1332836), (640, 999627), (960, 666418), (1920, 333209)]