2599987760

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{81047}}^1$

素因数の和:81461

約数の個数: 40

約数和(自身を含む): 6060121056

約数和(自身を除く): 3460133296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 1604, 2005, 3208, 4010, 6416, 8020, 16040, 32080, 81047, 162094, 324188, 405235, 648376, 810470, 1296752, 1620940, 3241880, 6483760, 32499847, 64999694, 129999388, 162499235, 259998776, 324998470, 519997552, 649996940, 1299993880, 2599987760]

約数ペア:

[(1, 2599987760), (2, 1299993880), (4, 649996940), (5, 519997552), (8, 324998470), (10, 259998776), (16, 162499235), (20, 129999388), (40, 64999694), (80, 32499847), (401, 6483760), (802, 3241880), (1604, 1620940), (2005, 1296752), (3208, 810470), (4010, 648376), (6416, 405235), (8020, 324188), (16040, 162094), (32080, 81047)]