289938140

素因数分解:

$2^2\times 5^1\times {\mathrm{3257}}^1\times {\mathrm{4451}}^1$

素因数の和:7717

約数の個数: 24

約数和(自身を含む): 609193872

約数和(自身を除く): 319255732

約数列:

[1, 2, 4, 5, 10, 20, 3257, 4451, 6514, 8902, 13028, 16285, 17804, 22255, 32570, 44510, 65140, 89020, 14496907, 28993814, 57987628, 72484535, 144969070, 289938140]

約数ペア:

[(1, 289938140), (2, 144969070), (4, 72484535), (5, 57987628), (10, 28993814), (20, 14496907), (3257, 89020), (4451, 65140), (6514, 44510), (8902, 32570), (13028, 22255), (16285, 17804)]