25162970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{577}}^1$

素因数の和:687

約数の個数: 48

約数和(自身を含む): 53372520

約数和(自身を除く): 28209550

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 89, 98, 178, 245, 445, 490, 577, 623, 890, 1154, 1246, 2885, 3115, 4039, 4361, 5770, 6230, 8078, 8722, 20195, 21805, 28273, 40390, 43610, 51353, 56546, 102706, 141365, 256765, 282730, 359471, 513530, 718942, 1797355, 2516297, 3594710, 5032594, 12581485, 25162970]

約数ペア:

[(1, 25162970), (2, 12581485), (5, 5032594), (7, 3594710), (10, 2516297), (14, 1797355), (35, 718942), (49, 513530), (70, 359471), (89, 282730), (98, 256765), (178, 141365), (245, 102706), (445, 56546), (490, 51353), (577, 43610), (623, 40390), (890, 28273), (1154, 21805), (1246, 20195), (2885, 8722), (3115, 8078), (4039, 6230), (4361, 5770)]