203865155

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{431}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 278691840

約数和(自身を除く): 74826685

約数列:

[1, 5, 13, 19, 65, 95, 247, 383, 431, 1235, 1915, 2155, 4979, 5603, 7277, 8189, 24895, 28015, 36385, 40945, 94601, 106457, 165073, 473005, 532285, 825365, 2145949, 3136387, 10729745, 15681935, 40773031, 203865155]

約数ペア:

[(1, 203865155), (5, 40773031), (13, 15681935), (19, 10729745), (65, 3136387), (95, 2145949), (247, 825365), (383, 532285), (431, 473005), (1235, 165073), (1915, 106457), (2155, 94601), (4979, 40945), (5603, 36385), (7277, 28015), (8189, 24895)]