80491370360

素因数分解:

$2^3\times 5^1\times {\mathrm{31541}}^1\times {\mathrm{63799}}^1$

素因数の和:95351

約数の個数: 32

約数和(自身を含む): 181114164000

約数和(自身を除く): 100622793640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 31541, 63082, 63799, 126164, 127598, 157705, 252328, 255196, 315410, 318995, 510392, 630820, 637990, 1261640, 1275980, 2551960, 2012284259, 4024568518, 8049137036, 10061421295, 16098274072, 20122842590, 40245685180, 80491370360]

約数ペア:

[(1, 80491370360), (2, 40245685180), (4, 20122842590), (5, 16098274072), (8, 10061421295), (10, 8049137036), (20, 4024568518), (40, 2012284259), (31541, 2551960), (63082, 1275980), (63799, 1261640), (126164, 637990), (127598, 630820), (157705, 510392), (252328, 318995), (255196, 315410)]