20397256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7477}}^1$

素因数の和:7525

約数の個数: 32

約数和(自身を含む): 43073280

約数和(自身を除く): 22676024

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7477, 14954, 29908, 59816, 82247, 164494, 231787, 328988, 463574, 657976, 927148, 1854296, 2549657, 5099314, 10198628, 20397256]

約数ペア:

[(1, 20397256), (2, 10198628), (4, 5099314), (8, 2549657), (11, 1854296), (22, 927148), (31, 657976), (44, 463574), (62, 328988), (88, 231787), (124, 164494), (248, 82247), (341, 59816), (682, 29908), (1364, 14954), (2728, 7477)]