71242840

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1823}}^1$

素因数の和:2811

約数の個数: 32

約数和(自身を含む): 160548480

約数和(自身を除く): 89305640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 1823, 1954, 3646, 3908, 4885, 7292, 7816, 9115, 9770, 14584, 18230, 19540, 36460, 39080, 72920, 1781071, 3562142, 7124284, 8905355, 14248568, 17810710, 35621420, 71242840]

約数ペア:

[(1, 71242840), (2, 35621420), (4, 17810710), (5, 14248568), (8, 8905355), (10, 7124284), (20, 3562142), (40, 1781071), (977, 72920), (1823, 39080), (1954, 36460), (3646, 19540), (3908, 18230), (4885, 14584), (7292, 9770), (7816, 9115)]