40907878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:660

約数の個数: 32

約数和(自身を含む): 69455232

約数和(自身を除く): 28547354

約数列:

[1, 2, 11, 22, 43, 83, 86, 166, 473, 521, 913, 946, 1042, 1826, 3569, 5731, 7138, 11462, 22403, 39259, 43243, 44806, 78518, 86486, 246433, 475673, 492866, 951346, 1859449, 3718898, 20453939, 40907878]

約数ペア:

[(1, 40907878), (2, 20453939), (11, 3718898), (22, 1859449), (43, 951346), (83, 492866), (86, 475673), (166, 246433), (473, 86486), (521, 78518), (913, 44806), (946, 43243), (1042, 39259), (1826, 22403), (3569, 11462), (5731, 7138)]