128867228

素因数分解:

$2^2\times 7^1\times {\mathrm{809}}^1\times {\mathrm{5689}}^1$

素因数の和:6509

約数の個数: 24

約数和(自身を含む): 258098400

約数和(自身を除く): 129231172

約数列:

[1, 2, 4, 7, 14, 28, 809, 1618, 3236, 5663, 5689, 11326, 11378, 22652, 22756, 39823, 79646, 159292, 4602401, 9204802, 18409604, 32216807, 64433614, 128867228]

約数ペア:

[(1, 128867228), (2, 64433614), (4, 32216807), (7, 18409604), (14, 9204802), (28, 4602401), (809, 159292), (1618, 79646), (3236, 39823), (5663, 22756), (5689, 22652), (11326, 11378)]