81104120

素因数分解:

$2^3\times 5^1\times {\mathrm{727}}^1\times {\mathrm{2789}}^1$

素因数の和:3527

約数の個数: 32

約数和(自身を含む): 182800800

約数和(自身を除く): 101696680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 727, 1454, 2789, 2908, 3635, 5578, 5816, 7270, 11156, 13945, 14540, 22312, 27890, 29080, 55780, 111560, 2027603, 4055206, 8110412, 10138015, 16220824, 20276030, 40552060, 81104120]

約数ペア:

[(1, 81104120), (2, 40552060), (4, 20276030), (5, 16220824), (8, 10138015), (10, 8110412), (20, 4055206), (40, 2027603), (727, 111560), (1454, 55780), (2789, 29080), (2908, 27890), (3635, 22312), (5578, 14540), (5816, 13945), (7270, 11156)]