639481570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{13259}}^1$

素因数の和:13339

約数の個数: 64

約数和(自身を含む): 1443536640

約数和(自身を除く): 804055070

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 53, 65, 70, 91, 106, 130, 182, 265, 371, 455, 530, 689, 742, 910, 1378, 1855, 3445, 3710, 4823, 6890, 9646, 13259, 24115, 26518, 48230, 66295, 92813, 132590, 172367, 185626, 344734, 464065, 702727, 861835, 928130, 1206569, 1405454, 1723670, 2413138, 3513635, 4919089, 6032845, 7027270, 9135451, 9838178, 12065690, 18270902, 24595445, 45677255, 49190890, 63948157, 91354510, 127896314, 319740785, 639481570]

約数ペア:

[(1, 639481570), (2, 319740785), (5, 127896314), (7, 91354510), (10, 63948157), (13, 49190890), (14, 45677255), (26, 24595445), (35, 18270902), (53, 12065690), (65, 9838178), (70, 9135451), (91, 7027270), (106, 6032845), (130, 4919089), (182, 3513635), (265, 2413138), (371, 1723670), (455, 1405454), (530, 1206569), (689, 928130), (742, 861835), (910, 702727), (1378, 464065), (1855, 344734), (3445, 185626), (3710, 172367), (4823, 132590), (6890, 92813), (9646, 66295), (13259, 48230), (24115, 26518)]