155584120

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{40099}}^1$

素因数の和:40207

約数の個数: 32

約数和(自身を含む): 353682000

約数和(自身を除く): 198097880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 40099, 80198, 160396, 200495, 320792, 400990, 801980, 1603960, 3889603, 7779206, 15558412, 19448015, 31116824, 38896030, 77792060, 155584120]

約数ペア:

[(1, 155584120), (2, 77792060), (4, 38896030), (5, 31116824), (8, 19448015), (10, 15558412), (20, 7779206), (40, 3889603), (97, 1603960), (194, 801980), (388, 400990), (485, 320792), (776, 200495), (970, 160396), (1940, 80198), (3880, 40099)]