438021290

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{127703}}^1$

素因数の和:127731

約数の個数: 32

約数和(自身を含む): 919468800

約数和(自身を除く): 481447510

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 127703, 255406, 638515, 893921, 1277030, 1787842, 4469605, 6257447, 8939210, 12514894, 31287235, 43802129, 62574470, 87604258, 219010645, 438021290]

約数ペア:

[(1, 438021290), (2, 219010645), (5, 87604258), (7, 62574470), (10, 43802129), (14, 31287235), (35, 12514894), (49, 8939210), (70, 6257447), (98, 4469605), (245, 1787842), (343, 1277030), (490, 893921), (686, 638515), (1715, 255406), (3430, 127703)]