77884240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139079}}^1$

素因数の和:139099

約数の個数: 40

約数和(自身を含む): 206951040

約数和(自身を除く): 129066800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139079, 278158, 556316, 695395, 973553, 1112632, 1390790, 1947106, 2225264, 2781580, 3894212, 4867765, 5563160, 7788424, 9735530, 11126320, 15576848, 19471060, 38942120, 77884240]

約数ペア:

[(1, 77884240), (2, 38942120), (4, 19471060), (5, 15576848), (7, 11126320), (8, 9735530), (10, 7788424), (14, 5563160), (16, 4867765), (20, 3894212), (28, 2781580), (35, 2225264), (40, 1947106), (56, 1390790), (70, 1112632), (80, 973553), (112, 695395), (140, 556316), (280, 278158), (560, 139079)]