71856680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{727}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 185552640

約数和(自身を除く): 113695960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 353, 706, 727, 1412, 1454, 1765, 2471, 2824, 2908, 3530, 3635, 4942, 5089, 5816, 7060, 7270, 9884, 10178, 12355, 14120, 14540, 19768, 20356, 24710, 25445, 29080, 40712, 49420, 50890, 98840, 101780, 203560, 256631, 513262, 1026524, 1283155, 1796417, 2053048, 2566310, 3592834, 5132620, 7185668, 8982085, 10265240, 14371336, 17964170, 35928340, 71856680]

約数ペア:

[(1, 71856680), (2, 35928340), (4, 17964170), (5, 14371336), (7, 10265240), (8, 8982085), (10, 7185668), (14, 5132620), (20, 3592834), (28, 2566310), (35, 2053048), (40, 1796417), (56, 1283155), (70, 1026524), (140, 513262), (280, 256631), (353, 203560), (706, 101780), (727, 98840), (1412, 50890), (1454, 49420), (1765, 40712), (2471, 29080), (2824, 25445), (2908, 24710), (3530, 20356), (3635, 19768), (4942, 14540), (5089, 14120), (5816, 12355), (7060, 10178), (7270, 9884)]