39720272

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{40697}}^1$

素因数の和:40766

約数の個数: 20

約数和(自身を含む): 78221556

約数和(自身を除く): 38501284

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 40697, 81394, 162788, 325576, 651152, 2482517, 4965034, 9930068, 19860136, 39720272]

約数ペア:

[(1, 39720272), (2, 19860136), (4, 9930068), (8, 4965034), (16, 2482517), (61, 651152), (122, 325576), (244, 162788), (488, 81394), (976, 40697)]