201984020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1442743}}^1$

素因数の和:1442759

約数の個数: 24

約数和(自身を含む): 484761984

約数和(自身を除く): 282777964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1442743, 2885486, 5770972, 7213715, 10099201, 14427430, 20198402, 28854860, 40396804, 50496005, 100992010, 201984020]

約数ペア:

[(1, 201984020), (2, 100992010), (4, 50496005), (5, 40396804), (7, 28854860), (10, 20198402), (14, 14427430), (20, 10099201), (28, 7213715), (35, 5770972), (70, 2885486), (140, 1442743)]