2056558760

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{80209}}^1$

素因数の和:80861

約数の個数: 32

約数和(自身を含む): 4634533800

約数和(自身を除く): 2577975040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 25640, 80209, 160418, 320836, 401045, 641672, 802090, 1604180, 3208360, 51413969, 102827938, 205655876, 257069845, 411311752, 514139690, 1028279380, 2056558760]

約数ペア:

[(1, 2056558760), (2, 1028279380), (4, 514139690), (5, 411311752), (8, 257069845), (10, 205655876), (20, 102827938), (40, 51413969), (641, 3208360), (1282, 1604180), (2564, 802090), (3205, 641672), (5128, 401045), (6410, 320836), (12820, 160418), (25640, 80209)]