81020104

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1031}}^1$

素因数の和:1114

約数の個数: 64

約数和(自身を含む): 178329600

約数和(自身を除く): 97309496

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 47, 76, 88, 94, 152, 188, 209, 376, 418, 517, 836, 893, 1031, 1034, 1672, 1786, 2062, 2068, 3572, 4124, 4136, 7144, 8248, 9823, 11341, 19589, 19646, 22682, 39178, 39292, 45364, 48457, 78356, 78584, 90728, 96914, 156712, 193828, 215479, 387656, 430958, 533027, 861916, 920683, 1066054, 1723832, 1841366, 2132108, 3682732, 4264216, 7365464, 10127513, 20255026, 40510052, 81020104]

約数ペア:

[(1, 81020104), (2, 40510052), (4, 20255026), (8, 10127513), (11, 7365464), (19, 4264216), (22, 3682732), (38, 2132108), (44, 1841366), (47, 1723832), (76, 1066054), (88, 920683), (94, 861916), (152, 533027), (188, 430958), (209, 387656), (376, 215479), (418, 193828), (517, 156712), (836, 96914), (893, 90728), (1031, 78584), (1034, 78356), (1672, 48457), (1786, 45364), (2062, 39292), (2068, 39178), (3572, 22682), (4124, 19646), (4136, 19589), (7144, 11341), (8248, 9823)]