68395280

素因数分解:

$2^4\times 5^1\times {\mathrm{839}}^1\times {\mathrm{1019}}^1$

素因数の和:1871

約数の個数: 40

約数和(自身を含む): 159364800

約数和(自身を除く): 90969520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 839, 1019, 1678, 2038, 3356, 4076, 4195, 5095, 6712, 8152, 8390, 10190, 13424, 16304, 16780, 20380, 33560, 40760, 67120, 81520, 854941, 1709882, 3419764, 4274705, 6839528, 8549410, 13679056, 17098820, 34197640, 68395280]

約数ペア:

[(1, 68395280), (2, 34197640), (4, 17098820), (5, 13679056), (8, 8549410), (10, 6839528), (16, 4274705), (20, 3419764), (40, 1709882), (80, 854941), (839, 81520), (1019, 67120), (1678, 40760), (2038, 33560), (3356, 20380), (4076, 16780), (4195, 16304), (5095, 13424), (6712, 10190), (8152, 8390)]