128714840

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{8627}}^1$

素因数の和:9011

約数の個数: 32

約数和(自身を含む): 290418480

約数和(自身を除く): 161703640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1492, 1865, 2984, 3730, 7460, 8627, 14920, 17254, 34508, 43135, 69016, 86270, 172540, 345080, 3217871, 6435742, 12871484, 16089355, 25742968, 32178710, 64357420, 128714840]

約数ペア:

[(1, 128714840), (2, 64357420), (4, 32178710), (5, 25742968), (8, 16089355), (10, 12871484), (20, 6435742), (40, 3217871), (373, 345080), (746, 172540), (1492, 86270), (1865, 69016), (2984, 43135), (3730, 34508), (7460, 17254), (8627, 14920)]