888978920

素因数分解:

$2^3\times 5^1\times {\mathrm{1447}}^1\times {\mathrm{15359}}^1$

素因数の和:16817

約数の個数: 32

約数和(自身を含む): 2001715200

約数和(自身を除く): 1112736280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1447, 2894, 5788, 7235, 11576, 14470, 15359, 28940, 30718, 57880, 61436, 76795, 122872, 153590, 307180, 614360, 22224473, 44448946, 88897892, 111122365, 177795784, 222244730, 444489460, 888978920]

約数ペア:

[(1, 888978920), (2, 444489460), (4, 222244730), (5, 177795784), (8, 111122365), (10, 88897892), (20, 44448946), (40, 22224473), (1447, 614360), (2894, 307180), (5788, 153590), (7235, 122872), (11576, 76795), (14470, 61436), (15359, 57880), (28940, 30718)]