201918220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{206039}}^1$

素因数の和:206062

約数の個数: 36

約数和(自身を含む): 493259760

約数和(自身を除く): 291341540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 206039, 412078, 824156, 1030195, 1442273, 2060390, 2884546, 4120780, 5769092, 7211365, 10095911, 14422730, 20191822, 28845460, 40383644, 50479555, 100959110, 201918220]

約数ペア:

[(1, 201918220), (2, 100959110), (4, 50479555), (5, 40383644), (7, 28845460), (10, 20191822), (14, 14422730), (20, 10095911), (28, 7211365), (35, 5769092), (49, 4120780), (70, 2884546), (98, 2060390), (140, 1442273), (196, 1030195), (245, 824156), (490, 412078), (980, 206039)]