128439779320

素因数分解:

$2^3\times 5^1\times {\mathrm{3307}}^1\times {\mathrm{970969}}^1$

素因数の和:974287

約数の個数: 32

約数和(自身を含む): 289077188400

約数和(自身を除く): 160637409080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3307, 6614, 13228, 16535, 26456, 33070, 66140, 132280, 970969, 1941938, 3883876, 4854845, 7767752, 9709690, 19419380, 38838760, 3210994483, 6421988966, 12843977932, 16054972415, 25687955864, 32109944830, 64219889660, 128439779320]

約数ペア:

[(1, 128439779320), (2, 64219889660), (4, 32109944830), (5, 25687955864), (8, 16054972415), (10, 12843977932), (20, 6421988966), (40, 3210994483), (3307, 38838760), (6614, 19419380), (13228, 9709690), (16535, 7767752), (26456, 4854845), (33070, 3883876), (66140, 1941938), (132280, 970969)]