2168557640

素因数分解:

$2^3\times 5^1\times {\mathrm{3539}}^1\times {\mathrm{15319}}^1$

素因数の和:18869

約数の個数: 32

約数和(自身を含む): 4880952000

約数和(自身を除く): 2712394360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3539, 7078, 14156, 15319, 17695, 28312, 30638, 35390, 61276, 70780, 76595, 122552, 141560, 153190, 306380, 612760, 54213941, 108427882, 216855764, 271069705, 433711528, 542139410, 1084278820, 2168557640]

約数ペア:

[(1, 2168557640), (2, 1084278820), (4, 542139410), (5, 433711528), (8, 271069705), (10, 216855764), (20, 108427882), (40, 54213941), (3539, 612760), (7078, 306380), (14156, 153190), (15319, 141560), (17695, 122552), (28312, 76595), (30638, 70780), (35390, 61276)]