74671280

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1901}}^1$

素因数の和:2405

約数の個数: 40

約数和(自身を含む): 174055824

約数和(自身を除く): 99384544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1901, 1964, 2455, 3802, 3928, 4910, 7604, 7856, 9505, 9820, 15208, 19010, 19640, 30416, 38020, 39280, 76040, 152080, 933391, 1866782, 3733564, 4666955, 7467128, 9333910, 14934256, 18667820, 37335640, 74671280]

約数ペア:

[(1, 74671280), (2, 37335640), (4, 18667820), (5, 14934256), (8, 9333910), (10, 7467128), (16, 4666955), (20, 3733564), (40, 1866782), (80, 933391), (491, 152080), (982, 76040), (1901, 39280), (1964, 38020), (2455, 30416), (3802, 19640), (3928, 19010), (4910, 15208), (7604, 9820), (7856, 9505)]