20153984

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8287}}^1$

素因数の和:8320

約数の個数: 32

約数和(自身を含む): 42268800

約数和(自身を除く): 22114816

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8287, 16574, 33148, 66296, 132592, 157453, 265184, 314906, 530368, 629812, 1060736, 1259624, 2519248, 5038496, 10076992, 20153984]

約数ペア:

[(1, 20153984), (2, 10076992), (4, 5038496), (8, 2519248), (16, 1259624), (19, 1060736), (32, 629812), (38, 530368), (64, 314906), (76, 265184), (128, 157453), (152, 132592), (304, 66296), (608, 33148), (1216, 16574), (2432, 8287)]