280178220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{667091}}^1$

素因数の和:667110

約数の個数: 48

約数和(自身を含む): 896571648

約数和(自身を除く): 616393428

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 667091, 1334182, 2001273, 2668364, 3335455, 4002546, 4669637, 6670910, 8005092, 9339274, 10006365, 13341820, 14008911, 18678548, 20012730, 23348185, 28017822, 40025460, 46696370, 56035644, 70044555, 93392740, 140089110, 280178220]

約数ペア:

[(1, 280178220), (2, 140089110), (3, 93392740), (4, 70044555), (5, 56035644), (6, 46696370), (7, 40025460), (10, 28017822), (12, 23348185), (14, 20012730), (15, 18678548), (20, 14008911), (21, 13341820), (28, 10006365), (30, 9339274), (35, 8005092), (42, 6670910), (60, 4669637), (70, 4002546), (84, 3335455), (105, 2668364), (140, 2001273), (210, 1334182), (420, 667091)]