245440280

素因数分解:

$2^3\times 5^1\times {\mathrm{1801}}^1\times {\mathrm{3407}}^1$

素因数の和:5219

約数の個数: 32

約数和(自身を含む): 552709440

約数和(自身を除く): 307269160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1801, 3407, 3602, 6814, 7204, 9005, 13628, 14408, 17035, 18010, 27256, 34070, 36020, 68140, 72040, 136280, 6136007, 12272014, 24544028, 30680035, 49088056, 61360070, 122720140, 245440280]

約数ペア:

[(1, 245440280), (2, 122720140), (4, 61360070), (5, 49088056), (8, 30680035), (10, 24544028), (20, 12272014), (40, 6136007), (1801, 136280), (3407, 72040), (3602, 68140), (6814, 36020), (7204, 34070), (9005, 27256), (13628, 18010), (14408, 17035)]