81960404

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{2153}}^1$

素因数の和:2495

約数の個数: 24

約数和(自身を含む): 148608768

約数和(自身を除く): 66648364

約数列:

[1, 2, 4, 31, 62, 124, 307, 614, 1228, 2153, 4306, 8612, 9517, 19034, 38068, 66743, 133486, 266972, 660971, 1321942, 2643884, 20490101, 40980202, 81960404]

約数ペア:

[(1, 81960404), (2, 40980202), (4, 20490101), (31, 2643884), (62, 1321942), (124, 660971), (307, 266972), (614, 133486), (1228, 66743), (2153, 38068), (4306, 19034), (8612, 9517)]