13405880

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{727}}^1$

素因数の和:1199

約数の個数: 32

約数和(自身を含む): 30270240

約数和(自身を除く): 16864360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 727, 922, 1454, 1844, 2305, 2908, 3635, 3688, 4610, 5816, 7270, 9220, 14540, 18440, 29080, 335147, 670294, 1340588, 1675735, 2681176, 3351470, 6702940, 13405880]

約数ペア:

[(1, 13405880), (2, 6702940), (4, 3351470), (5, 2681176), (8, 1675735), (10, 1340588), (20, 670294), (40, 335147), (461, 29080), (727, 18440), (922, 14540), (1454, 9220), (1844, 7270), (2305, 5816), (2908, 4610), (3635, 3688)]