20787029104

素因数分解:

$2^4\times {\mathrm{353}}^1\times {\mathrm{541}}^1\times {\mathrm{6803}}^1$

素因数の和:7705

約数の個数: 40

約数和(自身を含む): 40469566032

約数和(自身を除く): 19682536928

約数列:

[1, 2, 4, 8, 16, 353, 541, 706, 1082, 1412, 2164, 2824, 4328, 5648, 6803, 8656, 13606, 27212, 54424, 108848, 190973, 381946, 763892, 1527784, 2401459, 3055568, 3680423, 4802918, 7360846, 9605836, 14721692, 19211672, 29443384, 38423344, 58886768, 1299189319, 2598378638, 5196757276, 10393514552, 20787029104]

約数ペア:

[(1, 20787029104), (2, 10393514552), (4, 5196757276), (8, 2598378638), (16, 1299189319), (353, 58886768), (541, 38423344), (706, 29443384), (1082, 19211672), (1412, 14721692), (2164, 9605836), (2824, 7360846), (4328, 4802918), (5648, 3680423), (6803, 3055568), (8656, 2401459), (13606, 1527784), (27212, 763892), (54424, 381946), (108848, 190973)]