640243368

素因数分解:

$2^3\times 3^2\times {\mathrm{2851}}^1\times {\mathrm{3119}}^1$

素因数の和:5982

約数の個数: 48

約数和(自身を含む): 1735156800

約数和(自身を除く): 1094913432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 2851, 3119, 5702, 6238, 8553, 9357, 11404, 12476, 17106, 18714, 22808, 24952, 25659, 28071, 34212, 37428, 51318, 56142, 68424, 74856, 102636, 112284, 205272, 224568, 8892269, 17784538, 26676807, 35569076, 53353614, 71138152, 80030421, 106707228, 160060842, 213414456, 320121684, 640243368]

約数ペア:

[(1, 640243368), (2, 320121684), (3, 213414456), (4, 160060842), (6, 106707228), (8, 80030421), (9, 71138152), (12, 53353614), (18, 35569076), (24, 26676807), (36, 17784538), (72, 8892269), (2851, 224568), (3119, 205272), (5702, 112284), (6238, 102636), (8553, 74856), (9357, 68424), (11404, 56142), (12476, 51318), (17106, 37428), (18714, 34212), (22808, 28071), (24952, 25659)]