80386040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{287093}}^1$

素因数の和:287111

約数の個数: 32

約数和(自身を含む): 206707680

約数和(自身を除く): 126321640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 287093, 574186, 1148372, 1435465, 2009651, 2296744, 2870930, 4019302, 5741860, 8038604, 10048255, 11483720, 16077208, 20096510, 40193020, 80386040]

約数ペア:

[(1, 80386040), (2, 40193020), (4, 20096510), (5, 16077208), (7, 11483720), (8, 10048255), (10, 8038604), (14, 5741860), (20, 4019302), (28, 2870930), (35, 2296744), (40, 2009651), (56, 1435465), (70, 1148372), (140, 574186), (280, 287093)]