27401320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 64152000

約数和(自身を除く): 36750680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 172, 178, 179, 215, 344, 356, 358, 430, 445, 712, 716, 860, 890, 895, 1432, 1720, 1780, 1790, 3560, 3580, 3827, 7160, 7654, 7697, 15308, 15394, 15931, 19135, 30616, 30788, 31862, 38270, 38485, 61576, 63724, 76540, 76970, 79655, 127448, 153080, 153940, 159310, 307880, 318620, 637240, 685033, 1370066, 2740132, 3425165, 5480264, 6850330, 13700660, 27401320]

約数ペア:

[(1, 27401320), (2, 13700660), (4, 6850330), (5, 5480264), (8, 3425165), (10, 2740132), (20, 1370066), (40, 685033), (43, 637240), (86, 318620), (89, 307880), (172, 159310), (178, 153940), (179, 153080), (215, 127448), (344, 79655), (356, 76970), (358, 76540), (430, 63724), (445, 61576), (712, 38485), (716, 38270), (860, 31862), (890, 30788), (895, 30616), (1432, 19135), (1720, 15931), (1780, 15394), (1790, 15308), (3560, 7697), (3580, 7654), (3827, 7160)]