28815220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205823}}^1$

素因数の和:205839

約数の個数: 24

約数和(自身を含む): 69156864

約数和(自身を除く): 40341644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205823, 411646, 823292, 1029115, 1440761, 2058230, 2881522, 4116460, 5763044, 7203805, 14407610, 28815220]

約数ペア:

[(1, 28815220), (2, 14407610), (4, 7203805), (5, 5763044), (7, 4116460), (10, 2881522), (14, 2058230), (20, 1440761), (28, 1029115), (35, 823292), (70, 411646), (140, 205823)]