128043560

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{10427}}^1$

素因数の和:10745

約数の個数: 32

約数和(自身を含む): 289064160

約数和(自身を除く): 161020600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 10427, 12280, 20854, 41708, 52135, 83416, 104270, 208540, 417080, 3201089, 6402178, 12804356, 16005445, 25608712, 32010890, 64021780, 128043560]

約数ペア:

[(1, 128043560), (2, 64021780), (4, 32010890), (5, 25608712), (8, 16005445), (10, 12804356), (20, 6402178), (40, 3201089), (307, 417080), (614, 208540), (1228, 104270), (1535, 83416), (2456, 52135), (3070, 41708), (6140, 20854), (10427, 12280)]