1981768

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 3928320

約数和(自身を除く): 1946552

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 131, 244, 248, 262, 488, 524, 1048, 1891, 3782, 4061, 7564, 7991, 8122, 15128, 15982, 16244, 31964, 32488, 63928, 247721, 495442, 990884, 1981768]

約数ペア:

[(1, 1981768), (2, 990884), (4, 495442), (8, 247721), (31, 63928), (61, 32488), (62, 31964), (122, 16244), (124, 15982), (131, 15128), (244, 8122), (248, 7991), (262, 7564), (488, 4061), (524, 3782), (1048, 1891)]