40890746

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1303}}^1$

素因数の和:1406

約数の個数: 32

約数和(自身を含む): 70979328

約数和(自身を除く): 30088582

約数列:

[1, 2, 13, 17, 26, 34, 71, 142, 221, 442, 923, 1207, 1303, 1846, 2414, 2606, 15691, 16939, 22151, 31382, 33878, 44302, 92513, 185026, 287963, 575926, 1202669, 1572721, 2405338, 3145442, 20445373, 40890746]

約数ペア:

[(1, 40890746), (2, 20445373), (13, 3145442), (17, 2405338), (26, 1572721), (34, 1202669), (71, 575926), (142, 287963), (221, 185026), (442, 92513), (923, 44302), (1207, 33878), (1303, 31382), (1846, 22151), (2414, 16939), (2606, 15691)]