78907100

素因数分解:

$2^2\times 5^2\times {\mathrm{641}}^1\times {\mathrm{1231}}^1$

素因数の和:1886

約数の個数: 36

約数和(自身を含む): 171634848

約数和(自身を除く): 92727748

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 641, 1231, 1282, 2462, 2564, 3205, 4924, 6155, 6410, 12310, 12820, 16025, 24620, 30775, 32050, 61550, 64100, 123100, 789071, 1578142, 3156284, 3945355, 7890710, 15781420, 19726775, 39453550, 78907100]

約数ペア:

[(1, 78907100), (2, 39453550), (4, 19726775), (5, 15781420), (10, 7890710), (20, 3945355), (25, 3156284), (50, 1578142), (100, 789071), (641, 123100), (1231, 64100), (1282, 61550), (2462, 32050), (2564, 30775), (3205, 24620), (4924, 16025), (6155, 12820), (6410, 12310)]