20000806

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4423}}^1$

素因数の和:4468

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 18222554

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4423, 4522, 8846, 30961, 61922, 75191, 84037, 150382, 168074, 526337, 588259, 1052674, 1176518, 1428629, 2857258, 10000403, 20000806]

約数ペア:

[(1, 20000806), (2, 10000403), (7, 2857258), (14, 1428629), (17, 1176518), (19, 1052674), (34, 588259), (38, 526337), (119, 168074), (133, 150382), (238, 84037), (266, 75191), (323, 61922), (646, 30961), (2261, 8846), (4423, 4522)]