401800000015

素因数分解:

$5^1\times {\mathrm{1889}}^1\times {\mathrm{3943}}^1\times {\mathrm{10789}}^1$

素因数の和:16626

約数の個数: 16

約数和(自身を含む): 482582318400

約数和(自身を除く): 80782318385

約数列:

[1, 5, 1889, 3943, 9445, 10789, 19715, 53945, 7448327, 20380421, 37241635, 42541027, 101902105, 212705135, 80360000003, 401800000015]

約数ペア:

[(1, 401800000015), (5, 80360000003), (1889, 212705135), (3943, 101902105), (9445, 42541027), (10789, 37241635), (19715, 20380421), (53945, 7448327)]