667942709

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 815923200

約数和(自身を除く): 147980491

約数列:

[1, 7, 31, 47, 79, 217, 329, 553, 829, 1457, 2449, 3713, 5803, 10199, 17143, 25699, 25991, 38963, 65491, 115103, 179893, 272741, 458437, 805721, 1207853, 2030221, 3078077, 8454971, 14211547, 21546539, 95420387, 667942709]

約数ペア:

[(1, 667942709), (7, 95420387), (31, 21546539), (47, 14211547), (79, 8454971), (217, 3078077), (329, 2030221), (553, 1207853), (829, 805721), (1457, 458437), (2449, 272741), (3713, 179893), (5803, 115103), (10199, 65491), (17143, 38963), (25699, 25991)]