389751752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1871}}^1\times {\mathrm{2003}}^1$

素因数の和:3893

約数の個数: 32

約数和(自身を含む): 787812480

約数和(自身を除く): 398060728

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1871, 2003, 3742, 4006, 7484, 8012, 14968, 16024, 24323, 26039, 48646, 52078, 97292, 104156, 194584, 208312, 3747613, 7495226, 14990452, 29980904, 48718969, 97437938, 194875876, 389751752]

約数ペア:

[(1, 389751752), (2, 194875876), (4, 97437938), (8, 48718969), (13, 29980904), (26, 14990452), (52, 7495226), (104, 3747613), (1871, 208312), (2003, 194584), (3742, 104156), (4006, 97292), (7484, 52078), (8012, 48646), (14968, 26039), (16024, 24323)]