201222910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{410659}}^1$

素因数の和:410680

約数の個数: 24

約数和(自身を含む): 421337160

約数和(自身を除く): 220114250

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 410659, 821318, 2053295, 2874613, 4106590, 5749226, 14373065, 20122291, 28746130, 40244582, 100611455, 201222910]

約数ペア:

[(1, 201222910), (2, 100611455), (5, 40244582), (7, 28746130), (10, 20122291), (14, 14373065), (35, 5749226), (49, 4106590), (70, 2874613), (98, 2053295), (245, 821318), (490, 410659)]