65707280

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{15497}}^1$

素因数の和:15563

約数の個数: 40

約数和(自身を含む): 155661912

約数和(自身を除く): 89954632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 15497, 30994, 61988, 77485, 123976, 154970, 247952, 309940, 619880, 821341, 1239760, 1642682, 3285364, 4106705, 6570728, 8213410, 13141456, 16426820, 32853640, 65707280]

約数ペア:

[(1, 65707280), (2, 32853640), (4, 16426820), (5, 13141456), (8, 8213410), (10, 6570728), (16, 4106705), (20, 3285364), (40, 1642682), (53, 1239760), (80, 821341), (106, 619880), (212, 309940), (265, 247952), (424, 154970), (530, 123976), (848, 77485), (1060, 61988), (2120, 30994), (4240, 15497)]