279034420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{284729}}^1$

素因数の和:284752

約数の個数: 36

約数和(自身を含む): 681643620

約数和(自身を除く): 402609200

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 284729, 569458, 1138916, 1423645, 1993103, 2847290, 3986206, 5694580, 7972412, 9965515, 13951721, 19931030, 27903442, 39862060, 55806884, 69758605, 139517210, 279034420]

約数ペア:

[(1, 279034420), (2, 139517210), (4, 69758605), (5, 55806884), (7, 39862060), (10, 27903442), (14, 19931030), (20, 13951721), (28, 9965515), (35, 7972412), (49, 5694580), (70, 3986206), (98, 2847290), (140, 1993103), (196, 1423645), (245, 1138916), (490, 569458), (980, 284729)]