408021320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1457219}}^1$

素因数の和:1457237

約数の個数: 32

約数和(自身を含む): 1049198400

約数和(自身を除く): 641177080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1457219, 2914438, 5828876, 7286095, 10200533, 11657752, 14572190, 20401066, 29144380, 40802132, 51002665, 58288760, 81604264, 102005330, 204010660, 408021320]

約数ペア:

[(1, 408021320), (2, 204010660), (4, 102005330), (5, 81604264), (7, 58288760), (8, 51002665), (10, 40802132), (14, 29144380), (20, 20401066), (28, 14572190), (35, 11657752), (40, 10200533), (56, 7286095), (70, 5828876), (140, 2914438), (280, 1457219)]