27889040

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3917}}^1$

素因数の和:4019

約数の個数: 40

約数和(自身を含む): 65587320

約数和(自身を除く): 37698280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 3917, 7120, 7834, 15668, 19585, 31336, 39170, 62672, 78340, 156680, 313360, 348613, 697226, 1394452, 1743065, 2788904, 3486130, 5577808, 6972260, 13944520, 27889040]

約数ペア:

[(1, 27889040), (2, 13944520), (4, 6972260), (5, 5577808), (8, 3486130), (10, 2788904), (16, 1743065), (20, 1394452), (40, 697226), (80, 348613), (89, 313360), (178, 156680), (356, 78340), (445, 62672), (712, 39170), (890, 31336), (1424, 19585), (1780, 15668), (3560, 7834), (3917, 7120)]