20156819020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1462759}}^1$

素因数の和:1462834

約数の個数: 48

約数和(自身を含む): 46445555520

約数和(自身を除く): 26288736500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 13780, 1462759, 2925518, 5851036, 7313795, 14627590, 19015867, 29255180, 38031734, 76063468, 77526227, 95079335, 155052454, 190158670, 310104908, 380317340, 387631135, 775262270, 1007840951, 1550524540, 2015681902, 4031363804, 5039204755, 10078409510, 20156819020]

約数ペア:

[(1, 20156819020), (2, 10078409510), (4, 5039204755), (5, 4031363804), (10, 2015681902), (13, 1550524540), (20, 1007840951), (26, 775262270), (52, 387631135), (53, 380317340), (65, 310104908), (106, 190158670), (130, 155052454), (212, 95079335), (260, 77526227), (265, 76063468), (530, 38031734), (689, 29255180), (1060, 19015867), (1378, 14627590), (2756, 7313795), (3445, 5851036), (6890, 2925518), (13780, 1462759)]