210197820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{500471}}^1$

素因数の和:500490

約数の個数: 48

約数和(自身を含む): 672634368

約数和(自身を除く): 462436548

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, 500471, 1000942, 1501413, 2001884, 2502355, 3002826, 3503297, 5004710, 6005652, 7006594, 7507065, 10009420, 10509891, 14013188, 15014130, 17516485, 21019782, 30028260, 35032970, 42039564, 52549455, 70065940, 105098910, 210197820]

約数ペア:

[(1, 210197820), (2, 105098910), (3, 70065940), (4, 52549455), (5, 42039564), (6, 35032970), (7, 30028260), (10, 21019782), (12, 17516485), (14, 15014130), (15, 14013188), (20, 10509891), (21, 10009420), (28, 7507065), (30, 7006594), (35, 6005652), (42, 5004710), (60, 3503297), (70, 3002826), (84, 2502355), (105, 2001884), (140, 1501413), (210, 1000942), (420, 500471)]