395043145

素因数分解:

$5^1\times 7^2\times {\mathrm{401}}^1\times {\mathrm{4021}}^1$

素因数の和:4441

約数の個数: 24

約数和(自身を含む): 552960648

約数和(自身を除く): 157917503

約数列:

[1, 5, 7, 35, 49, 245, 401, 2005, 2807, 4021, 14035, 19649, 20105, 28147, 98245, 140735, 197029, 985145, 1612421, 8062105, 11286947, 56434735, 79008629, 395043145]

約数ペア:

[(1, 395043145), (5, 79008629), (7, 56434735), (35, 11286947), (49, 8062105), (245, 1612421), (401, 985145), (2005, 197029), (2807, 140735), (4021, 98245), (14035, 28147), (19649, 20105)]